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Klue OAuth breach linked to ‘Icarus’ Salesforce data theft attacks

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Data theft

Market intelligence platform Klue suffered a OAuth breach that enabled the “Icarus” threat actors to steal Salesforce CRM data from multiple organizations in an ongoing extortion campaign.

Sources told BleepingComputer of the attack yesterday, telling us that numerous organizations had their Salesforce data stolen and were now being extorted by the relatively new extortion group.

Cybersecurity firms ReliaQuest and Huntress have both published reports confirming the security incident, with Huntress stating that their Salesforce data was stolen in the attack.

image

Salesforce has since disabled the Klue Battlecards integration on its platform while the breach is investigated.

“To protect our customers, Salesforce has disabled the connection between the Klue Battlecards app, installed by individual customers, and Salesforce as part of our response to a recent security incident,” Salesforce warned yesterday.

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“As a result, organizations will not be able to connect to Salesforce via this app until further notice.”

If you have any information regarding this incident or other undisclosed attacks, you can contact us confidentially via Signal at 646-961-3731 or at tips@bleepingcomputer.com.

Stolen OAuth credentials used to steal Salesforce data

ReliaQuest stated that attackers gained access to Klue Battlecards integration service accounts and used OAuth tokens associated with customer Salesforce instances to carry out data theft.

The researchers observed the threat actors generating OAuth tokens and then using automated Python scripts to query Salesforce’s REST API for nearly 24 hours.

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The activity began with reconnaissance of an organization’s Salesforce instances through the ‘/services/data/v59.0/sobjects’ endpoint before exfiltrating data using the ‘/services/data/v59.0/query’.

ReliaQuest said that for one of the organizations, the attackers slowly mapped out their Salesforce objects to identify valuable objects and then rapidly stole data once they knew what they wanted.

“The attacker then hit the same endpoint, sending almost a thousand queries in a 15-minute window in at least one environment,” explained ReliaQuest.

“Where the first stage was a slow, steady pull designed to blend in, this burst traded stealth for speed, suggesting either time pressure or a shift to targeted records. In another case, the exfiltration was observed over 6 hours.”

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The researchers said the activity closely resembled previous Salesforce third-party integration data theft attacks by the ShinyHunters extortion group, but were unable to attribute the attacks to the threat actor.

However, BleepingComputer learned yesterday that ShinyHunters was not behind this attack, but rather a relatively new threat actor known as “Icarus” who had already begun emailing extortion demands to Klue customers impacted by the breach.

A ransom note shared with BleepingComputer showed that the emails were sent using the alias “mr bean” and included a Session Messenger ID to contact them.

Icarus extortion email
Icarus extortion email
Source: BleepingComputer

The threat actors’ data leak site also contains a message hinting at the extortion campaign in a simple post titled “Get Ready,” stating, “big corps getting listed. be ready.”

Message on the Icarus data leak site
Message on the Icarus data leak site
Source: BleepingComputer

Icarus is believed to have launched in April 2026, and initially listed two victims on its leak site, with BleepingComputer learning that at least one of these victims is connected to the Klue campaign. That company has now been removed from the data leak site, which may indicate that negotiations are underway.

Today, Huntress disclosed that it was among the organizations impacted by the Klue breach, confirming that they had received a similar extortion email as seen by BleepingComputer. However, the Session ID used in later emails was different and was instead the one listed on the Icarus data leak site, providing additional evident that they were behind the attack.

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“In the initial email, the adversary suggests, ‘we advice you to write to us on Session’ (sic),” reported Huntress.

“The Session Messenger ID that they provided matched the same values included on the dark web leak site of a new extortion group dubbed ‘Icarus.’”

According to Huntress, Klue told customers that attackers first compromised the company’s backend systems and then pushed a malicious code update that stole OAuth tokens customers use to integrate the Battlecards product with third-party platforms.

The attackers reportedly used a dormant but still active credential created by Klue for a prototype integration. After gaining access to Klue’s environment, they stole customer OAuth tokens and used them to query connected Salesforce environments directly.

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Klue later disabled integrations with Salesforce, HubSpot, SharePoint, Zoom, Gong, Chorus, Clari, Google Drive, and Slack while responding to the incident.

Huntress said the stolen data includes CRM-related information, including business contacts, sales communications, price quotes, competitive intelligence reports, and account data.

The cybersecurity company said there was no evidence that threat intelligence, customer telemetry, passwords, payment card information, or engineering systems were compromised.

Both ReliaQuest and Huntress shared IP addresses linked to the attacks, which are listed below:

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138.226.246.94
212.86.125.24
213.111.148.90
94.154.32.160

Organizations using Klue integrations are advised to review Salesforce and related SaaS logs for activity originating from these addresses, revoke and rotate OAuth tokens, terminate active sessions, and review Salesforce logs for unusual API activity.


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44 Best Father’s Day Gifts for Dads (2026)

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What’s better than reading in a beach chair in the shade? Reading on a beach chair in the shade using the Kobo Libra Colour (8/10 WIRED Reccomends), which is waterproof, has color e-ink, and has a mode for doodling down ideas with a stylus. Compared to Kindles, this device feels more like a productivity tool, as it’s easy to import articles to read and draw up ideas and lists.

OluKai

Mea Ola Nu’u Men’s Leather Sandals

Men’s sandals are a hot-button topic, but I have no qualms about this leather pair from California brand OluKai. The shoes get more comfortable with every wear.

Fjällräven

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Vardag Foldsack

I’m naming this the Official Backpack of Pool Days 2026. Swedish brand Fjällräven is known for its retro-styled backpacks, which I’ve always found a little fussy. But this bag is so practically designed for stuffing gear and securing it all with a zipper that I have become a huge fan. The padded straps are comfortable, and a zippered side pocket is perfect for holding pool passes and credit cards.

For the Car Dad

  • Photograph: Martin Cizmar

  • Photograph: Martin Cizmar

The Nokian Surpass AS01’s are some of the best-reviewed tires on the road, drawing praise from the automotive press as well as on message boards. I’ve only put about 100 miles on my set, but I’ll already add myself to the list of fans. These tires are grippy, quiet, and ride with supreme confidence. They also come with a 55,000-mile treadwear warranty, which is not typical for an ultra-high-performance tire like this. Nokian is a Finnish tiremaker known for its winter shoes. This model features the highest proportion of silica the brand has ever used, providing the benefits of the compound, which is better for braking distance, longevity, and grip in wet conditions. (The downsides of a silica-heavy tire compound are faster wear in hot weather and higher cost). If your dad has been making noise about needing new tires, head him off at the pass this Father’s Day and have a stack of four new tires delivered—most shops will be happy to mount them if you leave on the stickers.

  • Photograph: Martin Cizmar

  • Photograph: Martin Cizmar

Portable tire inflators and jump starters are both great things to have, and I have both. The AX65 from Noco is a high-powered combination of the two, and the best version of either I’ve encountered. The tire inflator is extremely quick—as fast as a gas station air compressor in my testing—and advertises that it’ll take a tire from flat to 40 pounds per square inch (psi) in two minutes. It holds 2,150 amp-hours of power, enough to jump a regular passenger car multiple times. It jumped my Dieselgate-era Jetta with ease (I’ve had the device for a month and already needed to jump my car thanks to its lack of alarm when you leave on the lights—VW was apparently dedicating its software engineering resources to other projects at the time). It’ll also recharge a phone or laptop via a 60-watt USB-C port, so it’s not just taking up dead space on road trips until disaster strikes.

BlueDriver

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Pro Next Gen OBD2 Scanner

There are dozens of OBD2 (on-board diagnostic) scanners out there, and I’ve owned three or four models. The BlueDriver stands out for having lots of powerful features without requiring a subscription or credits to unlock its functions, unlike many of its competitors. This device connects to your car’s port and pairs to a phone app via Bluetooth so you can read—and in many cases clear—trouble codes. It plays pretty well with my VW, though it’s not a full VCDS (VAG-COM diagnostic system) system, which is the software system for VW.

Decked

Halfrack 32

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Decked makes the sturdiest of the many car storage systems I’ve used over the years, and what the medium-sized Halfrack lacks in size, it more than makes up for in sheer toughness. It’s gasketed so it doesn’t leak. It’s also strong: Not only can it handle you standing atop it, but you can also supposedly drive a truck over it, and it won’t crack. (I have not driven my truck over it.) It has a locking lid that can be opened with one hand and a convenient carry handle that folds down flush when not in use. This is the gateway to a full system of boxes and drawers, so if your dad likes it, you’ll have gift ideas for years to come.

For the Yard Dad

  • Photograph: Martin Cizmar

  • Photograph: Martin Cizmar

My childhood neighbor Don Elmerick had the finest lawn I’ve ever seen. Elmerick, who lived across the street from my mother’s house for nearly 50 years before he passed in 2019, spent every summer meticulously tending to his acre of bright green grass, getting tan while mowing shirtless in jeans. His lawn was so nice that, as legend had it, the groundskeepers from the modest public golf course behind our house would come by to admire it. Every dad I know, including myself, would love to have a lawn like that. Unfortunately, I do not have the spare 10 to 20 hours a week it takes to do the research and labor required.

I won’t say that the Lawnbright plan has my more modest patch of lawn looking like Firestone Country Club after six months of treatment, but it does look better than any lawn I’ve kept in my adult life. That’s thanks to this service, which uses data from your lawn to create a custom treatment plan and then sends different treatment bottles at strategic times. All you do is open the box, attach the bottle to a hose, and spray. I applied the Green Machine formula in the fall and then Weed Wipeout in the spring. If your dad is always talking about how nice another man’s grass looks, this is the gift for him.

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Frontier Airlines is leaking your passport and credit card details from a boarding pass

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A hot potato: A security researcher has discovered serious vulnerabilities in Frontier Airlines’ booking system. Using just two pieces of information printed on every boarding pass – a booking code and a last name – anyone can pull full passport numbers, home addresses, TSA PreCheck codes, and nearly complete credit card details from the airline’s API. The vulnerabilities have been known for over three months.

If you’ve ever flown Frontier Airlines and your boarding pass ended up in a photo, a trash can, or a social media post, your personal data may be accessible to anyone right now.

A security researcher going by BobDaHacker published a detailed disclosure this week revealing that Frontier’s mobile API and booking management pages expose the full personal records of every passenger on a reservation to anyone armed with a booking code and a last name.

Both are printed on every boarding pass, and both are encoded in the barcode. The researcher first reported the issues to Frontier on March 3. It is now June 18, 105 days later, and the critical vulnerabilities remain live.

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The attack is straightforward. Frontier’s mobile API endpoint accepts a six-character PNR (Passenger Name Record) and a last name, and returns a full internal booking object that includes, for every passenger on the reservation:

  • Full home address (street, city, state, ZIP)
  • Email address and phone number
  • Full date of birth, including for minors
  • Complete, unmasked passport number, issuing country, and expiration date
  • Known Traveler Number (TSA PreCheck identifier)
  • Frontier Miles loyalty number
  • Credit card BIN (first 6 digits), last 4 digits, expiration date, cardholder name, and full billing address
  • Payment history with authorization codes
  • The credit card math

The payment exposure is more serious than it sounds. BobDaHacker explains that the BIN (the first six digits of a card number) combined with the last four digits already visible leaves only five digits unknown. The 16th digit is a deterministic Luhn check digit, calculable from the other 15. That means approximately 100,000 possible combinations for the remaining middle digits – trivially iterable in a script.

With the cardholder’s name, expiration date, and full billing address (which satisfies AVS verification for card-not-present transactions) also exposed, the CVV becomes the sole remaining security control.

Beyond the mobile API, BobDaHacker found that Frontier’s website leaks data through its own “Manage My Booking” pages. The Passengers/Edit page, reachable with the same PNR and last name, displays full passport numbers, dates of birth, and KTNs, and also embeds them in a server-rendered JSON blob in the page source.

When Frontier attempted to fix an earlier email leak on the Manage My Booking page, it introduced two new leaks – one of which also exposed phone numbers.

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There was also a fourth vulnerability: an endpoint that returned booking data from a PNR alone, with no last name required. That one Frontier did fix. The company also sent the researcher a model airplane. The rest remains unpatched.

A former Frontier employee who reached out after BobDaHacker’s post went live offered some context for why the codebase might be in this state. “IBE was already considered a legacy codebase,” he wrote, referring to the booking system visible in the researcher’s screenshots. “We were talking about sunsetting it and replacing it with a cleaner, more modern solution. IBE was a mess of generated config and code that only one person was senior enough to touch. Everyone else basically danced around it.” The employee added that the security incident came as no surprise given the workplace culture they’d experienced.

BobDaHacker followed standard responsible disclosure throughout, with an initial report on March 3, multiple follow-ups, and a formal 30-day deadline set for June 12 that Frontier let pass without response. As of writing, Frontier has not issued a public statement.

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Rivian Faces A Class Action Lawsuit Over Self-Driving In Its Early Vehicles

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Plaintiffs claim the company overstated the capabilities of the R1T and R1S.

Rivian has been sued on allegations that it made misleading statements about the self-driving capabilities of its R1T truck and R1S SUV. 

According to the class action complaint brought by Rivian customers, the first-generation models of these vehicles are not capable of the offering the self-driving potential that the company had promised. The plaintiffs argued that Rivian represented that those early models would be capable of level 3 autonomous driving, meaning the vehicle would be able to steer, accelerate and break without driver action.

“In reality, Rivian manufactured its Gen 1 Vehicles without the hardware, cameras, sensors, and compute to enable hands-free driving and/or Level 3 autonomous operation,” the complaint states. “No software update — no matter how sophisticated — will enable its Gen 1 Vehicles to perform as advertised. Rivian unquestionably knew that its Gen 1 Vehicles would never be capable of Level 3 autonomy or ‘true hands-free driving’ yet continued to tout the supposed capabilities of its vehicles to induce consumers to purchase them.”

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Rivian introduced its “universal hands-free driving” software update late last year. The tech was made available for the company’s R2 collection of electric vehicles and the second generation of its R1 lineup.

When contacted by TechCrunch, Rivian declined to offer comment on the pending case. 

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Midjourney pivots from AI image generation to body scanning medical spa where patients bathe in ‘golden light’

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ai + ml

The underlying technology is real…and borrowed from a partner the company failed to mention

A San Francisco startup best known for its AI-generation software is making a bizarre leap into medical imaging, and trying to says it hopes draw curiosity-seekers into its new spa to get scanned.

On Wednesday, Midjourney announced the establishment of Midjourney Medical, which it admitted was a bit out of left field. To promote the tech, it claims to be opening a spa in San Francisco where guests will be able to step “into a shallow pool of golden light,” before being lowered into a tank where ultrasound sensors bombard their bodies in order to take a scan that AI pieces together into MRI-like images. This sounds like the plot of a cheap sci-fi movie, but there is some real science behind it. 

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“As you descend into the water, hundreds of thousands of tiny elements take turns, sending out waves, listening together, compressing and then streaming data to a massive cluster where thousands of computers split the task,” Midjourney explained in the announcement. “By looking at how the shapes of all the waves change, we reconstruct a detailed map or ‘image’ which basically lets us figure out what’s in there.” 

The guts of Midjourney's prototype full-body ultrasound scanner

The guts of Midjourney’s prototype full-body ultrasound scanner

That “basically” isn’t exactly reassuring when Midjourney says it wants to have 50,000 or more of the things deployed around the world by 2031 “with a total scanning capacity of a billion scans a month” for use as a preventative health tool. It’s not clear how fast the process is with the prototype unit, but Midjourney said its goal is for the whole thing to take around a minute. 

“We think it’s completely possible that with enough early imaging in the future, the world could avoid 30% of all deaths and 50% of all healthcare costs,” the company added. 

According to a “technical” video included in the announcement, there’s a ring of 40 scanners included in the prototype unit the company has built. That ring of 40 elements contains 358,000 ultrasonic elements made up of tiny transducers that create ultrasound waves in water while listening for how they change when they slap the body of whoever is in Midjourney’s dunk tank up to a thousand times a second. 

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The Midjourney Scanner, as the company has named it, can capture tissue details up to half a millimeter, which is on par with standard clinical MRIs, but pales in comparison to the resolution of more advanced designs.

A processed image of the midsection of a human body scanned by the Midjourney Scanner

A processed image of the midsection of a human body scanned by the Midjourney Scanner

Oh, did we not mention our partner?

Midjourney said its scanner is the first of its kind ever constructed, but the technical video says it relies on Fullbody Ultrasound Computational Tomography (FUCT, or USCT, as the industry has taken to calling it to avoid the more questionable acronym). That’s not new. Fast, full-body ultrasound scanning that requires patients to be submerged in a water tank has been an active project at Caltech based on a research paper from earlier this year. 

Same goes for the sensors Midjourney is including in its scanner. You wouldn’t know that from reading the announcement, which makes it seem like this was a project entirely of Midjourney’s own AI fever dreams, but ultrasound tech firm Butterfly Network was compelled to issue its own press release “following Midjourney’s public announcement” in order to “provide commentary” on the AI outfit’s new venture. 

Butterfly confirmed in its release that it provided the 40 ultrasound imaging modules for the Midjourney Scanner. The hardware was “licensed under a co-development agreement between the two companies,” according to Butterfly. According to a 2025 SEC filing, Butterfly expects to rake in $74 million over five years for providing the hardware. 

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There’s some irony in Midjourney’s failure to mention its partner: The company has faced lawsuits claiming it used copyrighted works without permission to train its AI image generation model.

We reached out to both companies to learn more. Midjourney didn’t respond, and Butterfly declined to add anything beyond what was in its press release.  

Midjourney said that it’s planning to open its first ultrasound scanner spa at the end of 2027, but it has another hurdle to jump: FDA approval. Beyond improving its tech so that the second-generation scanner is ready for its 2027 spa date, “regulation is the next limit,” the company said. 

Concept art of Midjourney's planned spa

Concept art of Midjourney’s planned spa

“Normally, for every diagnostic medical capability you need FDA approval,” Midjourney explained. “We’re starting by just giving you detailed body composition maps — and we’ll be submitting regular test results to the FDA for increased capabilities.”

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Midjourney also fails to mention how it will store and secure those scans, whether it will use said scans to train its body composition-detection algorithms, and how it’s ensuring those algorithms get things right that it usually take a human a few years of education and training to learn. ®

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Apple Announces Major App Store Changes on iOS in Brazil

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Apple is allowing iPhone developers in Brazil to distribute apps through authorized alternative marketplaces and use third-party payment systems following action by the country’s competition regulator. “In other words, developers in Brazil will be able to circumvent the App Store and Apple’s in-app purchase system, but there are still fees,” reports MacRumors. Apple will collect commissions ranging from 5% on externally distributed apps to as much as 26% for some App Store transactions using its payment system. From the report: Alternative app marketplaces will have to be authorized by Apple and will need to meet ongoing requirements. For apps that are still distributed through the App Store, developers will be able to include an alternative payment processing method in their app and/or link users to a website to complete a transaction. These changes are available on iOS 26.5 and later, and they are the result of regulatory action from Brazil’s competition regulator. Apple has added a new page on its website with additional details for developers in Brazil.

Apple said these changes introduce privacy and security risks for users, including children. The company has introduced safeguards to mitigate these risks, including a notarization process for iOS apps, an authorization process for app marketplaces, and limitations on external links and alternative payments for users under the age of 18. Apple has already allowed alternative app stores and/or third-party payment systems on iOS in the EU, Japan, and South Korea, and it will likely be forced to do so in the UK and Australia too, due to similar regulations in those countries.

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How returning to education mid-career ‘changes your thinking’

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Mohammed Azharuddin Khan discusses the good, the difficult and the rewarding parts of returning to education in the middle of your career.

Earlier this year, Technology Ireland ICT Skillnet announced its plans to award four fully funded places on its MSc in Leadership, Innovation and Technology programme as a way of celebrating the course’s 20 years in operation.

The programme, which is delivered at Technological University Dublin, is a part-time, applied master’s designed specifically for experienced professionals working in technology and innovation-led environments.

In the years since it was first introduced in 2006, the programme has produced 300 graduates.

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One such graduate is Mohammed Azharuddin Khan, who recently completed the course.

Khan, a project manager at Dell Technologies, tells SiliconRepublic.com that he was drawn to the leadership programme through “an honest realisation”.

“I was leading big projects, and the work was going well,” he explains. “But I started to notice something. The higher the conversations went, the less my technical skills helped me.

“The things that got me this far were not the same things that would take me further.”

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Determined to find a way to progress, Khan decided to look at a few courses – but none of them “felt right”, he says.

“They were either too general or too far from the work I actually do.”

He was ultimately drawn to the MSc in Leadership, Innovation and Technology programme.

“[It] sat exactly where I spend my time, between technology, leadership and innovation,” he says. “That made sense for me. It wasn’t learning for its own sake, it was learning I could bring straight back into my day-to-day work.”

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Back to school

Having completed an engineering degree at the beginning of his career, Khan says the return to education years later was noticeably different from his earlier studies.

“During my undergrad, studying was my main focus,” he explains. “I had more time and fewer responsibilities. I learned a lot, but most of it stayed as theory. I did not have much real experience at that time, so it was mostly about passing exams.”

This time, he says, it was very different.

“I could relate what I was learning directly to my work. Sometimes I would read about a leadership concept and immediately think of a situation from my job.

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“It felt practical and useful, not just theory. I could apply things quickly, and because of that, the learning stayed with me.”

But while the learning experience was different, Khan says the hard part wasn’t the studying – it was “managing everything around it”.

Around the time that Khan was starting the course, he and his wife had a son. The first-time dad had to balance a full-time job, learning how to be a father and his studies.

“Looking back, that period changed a lot for me,” he says.

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“When I reflect on it now, I can see how important the support system was. I received strong support from the teaching staff, who were understanding and flexible. My organisation and my manager were also supportive, which made a big difference.

“Most importantly, my wife supported me throughout this time. Having this kind of support really helped me keep going. There were moments when it felt overwhelming, but that support and encouragement made a big difference.”

Learn and apply

Khan describes his experience of the programme as very positive, particularly praising the structure of the course and its relevance to real work situations.

“I was able to connect what I learned with my day-to-day job, which made it very practical,” he says.

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Khan says one of the highlights of the programme was the blended learning format that the course utilised, with both in-person and online classes.

“This helped me manage work and study in a better way,” he explains. “The in-person classes also gave a good chance to connect with classmates from different industries.

“Being in a room with experienced professionals from different industries really changed how I think. Sometimes I would bring a problem from my own work, and someone from a different field would see it in a completely new way. This kind of learning was very valuable.”

For anyone considering going back to education mid-career, Khan advises that you don’t wait for the “perfect time”, because it never really comes.

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“There will always be work, family and other responsibilities,” he explains. “I started my course when I had a newborn at home and a full-time job. It was not easy, but looking back, it was definitely worth it.”

He also advises that you talk to the people around you before you start – including your partner, manager and team. He recommends that they should know what you’re planning since their support will make a big difference during the inevitable busy and difficult weeks of mid-career learning.

This support system, he says, will help you stay on track.

“Another important thing is to see your experience as a strength,” says Khan. “When you study in the middle of your career, you can connect learning to real situations. This helps you understand things better and makes the learning more valuable compared to when you are just starting out.

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“The qualification and degree are important, but the real benefit is how the experience changes your thinking. It helps you grow as a professional and as a leader, and that is something that stays with you long after the course is finished.”

Don’t miss out on the knowledge you need to succeed. Sign up for the Daily Brief, Silicon Republic’s digest of need-to-know sci-tech news.

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Sennheiser ACCENTUM Clip Open Ear Earbuds Debut With LDAC, Bluetooth 6.0 and 36 Hour Battery Life

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Sennheiser is entering the open-ear true wireless category with the ACCENTUM Clip, a new clip-on style earbud designed for listeners who want to hear their surroundings without giving up entirely on sound quality.

That last part matters. Open-ear earbuds have become a real category, not just a fitness accessory hiding in the headphone aisle. The appeal is obvious: no ear canal seal, better awareness while walking, commuting, running, working, or pretending to listen during a meeting. The problem has usually been the sound. Bass can be lightweight, treble can get splashy, and privacy can be questionable if the driver is not properly aimed.

Sennheiser says ACCENTUM Clip is designed to address those issues with a 12mm dynamic driver, Hi-Res Audio Wireless certification, LDAC support, Bluetooth 6.0, and a clip-style design that leaves the ear canal open for natural ambient awareness rather than using an electronic transparency mode.

Related Reviews:

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Open Ear Listening Without Electronic Pass Through

sennheiser-accentum-clip-earbuds-cream

The ACCENTUM Clip does not try to block the world and then pipe it back in with microphones. Its open design allows outside sound to remain audible naturally, which is the whole point of this category.

That gives it a very different use case than traditional ANC wireless earbuds. These are not for airplanes, subway platforms at full roar, or shutting out the person next to you who has mistaken speakerphone for a personality. They are for daily movement, office use, calls, light workouts, and situations where isolation is either unnecessary or a bad idea.

The earbuds weigh 6.8 grams each and use a flexible silicone bridge to keep the speaker positioned near the ear without inserting anything into the ear canal. Sennheiser also says the speaker geometry and built-in damping are designed to reduce unwanted sound leakage, which is one of the more important technical challenges with open-ear designs.

LDAC, Dynamic EQ, and App Control

sennheiser-accentum-clip-earbuds-cream-front

Sennheiser is positioning ACCENTUM Clip as a more audio-focused open-ear option. The earbuds support SBC, AAC, and LDAC, with LDAC available when paired with a compatible source device. That will matter most for Android users who want a higher-bitrate Bluetooth option; iPhone users will be using AAC.

The company has also added Dynamic EQ, which adjusts the tonal balance as volume changes. At lower levels, the EQ compensates for tonal shifts; as volume rises, the curve backs off to maintain balance and avoid distortion. That is a useful feature in an open-ear product because listeners often raise volume to overcome street noise or gym noise, which can make lesser designs sound strained.

ACCENTUM Clip also works with the Sennheiser Smart Control Plus app, including a 5-band EQ, shareable presets, and Sound Check guided tuning.

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Battery Life and Durability

Battery life is rated at up to 9 hours per charge, with the charging case providing three additional top-ups for up to 36 hours total. A 10-minute USB-C quick charge provides up to 2 hours of playback.

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The earbuds are IP54 rated for dust and sweat resistance, which puts them in the right lane for commuting, walking, gym use, and lighter outdoor activity. Each earbud also includes a dual-microphone system with AI noise reduction for voice calls. Bluetooth 6.0 brings multipoint connectivity, independent earbud use, and Google Fast Pair support.

sennheiser-accentum-clip-earbuds-black-angle

Where ACCENTUM Clip Fits in the Open Ear Category

Sennheiser is not walking into an empty room. Bose, Sony, Shokz, Cleer Audio, Soundcore, Nothing, JBL, and Huawei have all pushed open-ear listening in different directions.

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The Bose Ultra Open Earbuds ($299) helped make the clip-style format more visible, combining an open-ear fit with Bose OpenAudio, Immersive Audio, multipoint support, and up to roughly 7 hours of battery life depending on use.

Sony has taken a different approach with the LinkBuds Open ($229), using an 11mm open-ring driver that keeps the center of the earbud open for ambient sound. Sony also includes Adaptive Volume Control, DSEE processing, app-based EQ, multipoint, IPX4 water resistance, and up to 22 hours of total playback.

Shokz OpenDots 2 ($199) is another important competitor, especially for fitness and all-day wear. It features bone and air conduction mics, a spherical acoustic system, customizable EQ modes, IP57 water resistance, and up to 10 hours per charge or 40 hours with the case.

Cleer Audio also deserves to be in this conversation. Its ARC series has been one of the more aggressive attempts to make open-ear earbuds sound less compromised, especially with larger drivers, Snapdragon Sound, higher-quality Bluetooth codec support on select models, app-based tuning, and durable sport-friendly designs. The ARC 4 and ARC 5 ($219) are particularly relevant here because Cleer has clearly treated open-ear listening as an audio category, not just a safer workout-earbud category.

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The Soundcore AeroClip ($149) brings the clip-on idea down to a lower price point with an open-ear design, 12mm drivers, IP55 rating, multipoint, AI call microphones, and up to 32 hours of total battery life. Nothing’s Ear open also sits in this awareness-first category with an IP54 rating, dual connection, Clear Voice Technology for calls, and up to 30 hours of total playback.

That is the context Sennheiser has to deal with. The market already understands the benefit of open-ear listening. ACCENTUM Clip has to prove that Sennheiser’s tuning, LDAC support, app control, and physical design can make it one of the better-sounding choices in a category that still has plenty of room to improve.

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The Bottom Line

The Sennheiser ACCENTUM Clip is aimed at listeners who want true wireless earbuds that do not seal them off from the world. The feature set is stronger than basic open-ear fare: LDAC, Bluetooth 6.0, 36-hour total battery life, app-based EQ, IP54 protection, and a lightweight clip design.

The big question is sound quality. Sennheiser clearly knows how to tune open-back headphones, but open-ear true wireless earbuds are a different fight. If ACCENTUM Clip delivers fuller bass, controlled leakage, and a less compromised tonal balance than many rivals, Sennheiser could have a serious entry in a category that is finally growing up.

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Price & Availability

Sennheiser ACCENTUM Clip will be available in Black and Cream. According to the Canadian press release, the earbuds will be available in Canada starting July 23, 2026 through Sennheiser’s consumer site and Best Buy for $269.95 CAD. U.S. pricing and availability were not included in the supplied Canadian release.

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Inside SURBL, the email blacklist that checks your links, not your IP

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Watching email marketers obsessively monitor their sender IP, checking it daily, warming it carefully, treating it like a rare orchid, is not only relatable, it’s a reminder of how much conventional wisdom can leave you completely exposed.

Because the blacklist that’s killing your campaigns in 2026 probably has nothing to do with your IP at all. It has to do with what’s inside your email. Specifically, the links.

That’s the uncomfortable premise behind SURBL, the Spam URI Realtime Blocklist, and once you understand how it works, a lot of “mystery” delivery failures stop being mysterious. Warmy.io’s research team has published a full breakdown of what causes a listing, how to detect it, and how to recover, details we draw on throughout this piece.

The list that checks your links, not your IP

SURBL doesn’t care where your email comes from. It cares where it’s going. While traditional blocklists like Spamhaus or Barracuda evaluate the sender, SURBL evaluates the message, every URL buried in your body copy, every social icon, every tracking pixel.

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This distinction changes everything. A clean sending IP offers zero protection if a link inside your email points to a flagged domain. Your message arrives in the inbox. The links are silently disabled. Your click-through rate quietly collapses, and you have no idea why. For a deeper technical breakdown of how the system works, the SURBL blacklist report from Warmy.io is the most thorough public resource currently available.

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Five lists, five different problems

SURBL isn’t actually one list. It’s five, each targeting a different category of threat, and each requiring a different fix if you land on one.

PH (Phishing): Domains used for credential harvesting or identity theft.

MW (Malware): Sites hosting or distributing spyware, viruses, or ransomware.

CR (Cracked Sites): Legitimate websites that have been quietly compromised and repurposed by spammers, without the owner ever knowing.

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AB (AbuseButler): Domains flagged through high-volume sending and automated spam pattern analysis.

Multi: A combined super-list that lets mail servers query all four in a single DNS lookup.

The CR list is the one that keeps legitimate business owners up at night. Your site can look completely normal, loading fine, taking orders, passing every visual check, while hidden redirect scripts installed by attackers are triggering SURBL flags behind the scenes.

How you end up on the list without doing anything wrong

Here’s the part nobody likes to hear: you don’t have to send spam to get listed on SURBL. That’s what makes it different from almost every other blacklist, and what makes it so disorienting when it happens.

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A hacked WordPress install can plant redirect scripts invisible to you but obvious to SURBL scanners. An affiliate link carries the reputation history of every sender who ever used it, including the ones who spammed it to death before you. An insecure contact form on your website is an open door for spammers to push their own links through your domain. And linking to any domain registered in the last 72 hours is, on its own, one of SURBL’s strongest triggers. New domain, no history, no trust.

The warning signs hiding in plain sight

SURBL failures tend to be silent, which is what makes them dangerous. The signals are there, they just don’t look like a blacklisting at first glance.

Watch for SMTP 554 bounce codes on a clean sending IP (almost always a URI block), a sudden unexplained drop in click-through rates (Gmail and Outlook use SURBL data to disable links in delivered messages), or “too many hops” notifications where a receiving server hit its limit trying to scan your URLs. Any complaint spike tied to a specific URL rather than your sending domain is also worth isolating immediately. Warmy’s deliverability monitoring flags these signals automatically, before they escalate into a full listing.

Getting off: the sequence matters as much as the fix

Removal from SURBL is not a form you fill out and wait. The sequence is non-negotiable: identify the root cause, fix it completely, then submit. Sending a removal request before the underlying issue is resolved doesn’t just fail, it actively slows you down, as vague submissions without technical documentation get deprioritised.

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Start at surbl.org/lookup to confirm which sub-list you’re on. That determines your remediation path. CR listing? Clean your site with Sucuri or a Cloudflare WAF and document what you found. AB listing? Identify and stop the high-volume behaviour that triggered spam trap hits. Then file a detailed removal request, specific causes, specific steps taken, nothing vague. The full step-by-step remediation framework is available in Warmy.io’s SURBL report, including sub-list breakdowns built for technical teams.

Prevention costs less than a crisis

A few habits dramatically reduce SURBL exposure before it becomes a problem. Audit every link in your email templates, including the ones you forget are there: social icons, tracking pixels, footer links. Use a dedicated sending domain so a listing never touches your primary brand. And don’t link to anything registered in the last 72 hours. No exceptions.

For new domains or those recovering from a previous listing, Warmy.io’s AI-powered email warmup builds sender reputation gradually, reducing the behavioural signals that trigger AB-type listings before they start.

From silent link-disabling to cracked CMS sites, SURBL is proving something the email industry is still slow to absorb: reputation isn’t just about where your email comes from. It’s about everywhere it tries to go.

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‘This marks a sophisticated evolution’: Experts warn Claude feature hijacked by hackers to launch major malware campaign

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  • Trend Micro found criminals abusing Claude’s “Shared Chats” feature to spread infostealers via ClickFix and malvertising
  • Fake Apple Support chats on claude.ai, promoted through Google Ads, tricked macOS developers into pasting malicious commands
  • Anthropic banned the accounts and disabled malicious conversations, promising further abuse mitigations

Security researchers Trend Micro have detected criminals abusing a legitimate feature in Claude AI to trick software developers into downloading malware. The campaign also includes malvertising, as well as the tried-and-true ClickFix method.

The goal of the campaign is to infect software developers – primarily those building AI tools on macOS environment – with infostealers.

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Nintendo confirms data stolen in WebMD subsidiary cyberattack

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Nintendo confirms data stolen in WebMD subsidiary cyberattack

Nintendo of America has confirmed to BleepingComputer that threat actors stole survey data from the third-party TinyPulse service used internally, but its systems were not compromised.

The company’s statement comes after claims from the Shadowbyt3$ “extortion-as-a-service” threat group that they exfiltrated sensitive data related to Nintendo of America employees.

“We are aware of an issue involving TinyPulse, a third-party service used for internal employee surveys at Nintendo of America,” stated Nintendo.

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“Nintendo’s systems have not been compromised, and no personal customer or financial data has been accessed. Nintendo’s systems have not been compromised, and no personal customer or financial data has been accessed.”

“The data involved is limited to internal survey content comprising a small subset of our employees, and most of the information dates back several years,” the company told BleepingComputer.

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Nintendo of America is a subsidiary of the Japanese game company, responsible for operations in the United States, Canada, and parts of Latin America.

TinyPulse is an employee engagement and feedback platform used for anonymous employee surveys, engagement analytics, feedback collection, and workplace culture assessments.

The gaming firm said it is “working with the service provider to address the issue.”

BleepingComputer contacted WebMD Health Services, the owner of the TinyPulse platform, for more information about the incident and its impact, but we did not receive a response by publishing time.

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Shadowbyt3$ demands $2 million ransom

While Nintendo states that the incident only exposed survey information, Shadowbyt3$ claims that the stolen information includes employee personal details.

In an initial message, the threat actor said that they stole close to 1GB of data from Nintendo and gave the company 48 hours to engage in negotiations before leaking the information.

According to the threat actor, the stolen data contains full names, email addresses, analytics and survey data, bank statements, and W-9 forms with employee IDs, progress plans, and reports between 2016 and 2026.

“If you contact us we give you an extra day to think this through. We are demanding a ransom payment of 2 million dollars,” reads the Shadowbyt3$ post.

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Shadowbyt3$’s asking Nintendo to start communication
source: Kela

In a second message, the threat actor clarified that the “breach doesn’t affect nintendo gaming” but “a small amount of employees that work for nintendo and have used tinypulse.”

Another post from Shadowbyt3$ warned that there will be more victims and provided a link to leaked data allegedly including direct messages and conversations between employees, suggesting that Nintendo did not agree to pay a ransom.

Shadow
Source: BleepingComputer

BleepingComputer did not download the leaked data and could not confirm its authenticity. Even if the information is valid, Nintendo customer information remained unaffected by this breach, and account holders do not need to take any action.

ShadowByt3$ is a relatively new threat actor describing itself as an “extortion as a service group” operating since October 2025. The gang is leaking data stolen from victim companies that do not pay a ransom and says that in the case of a settlement, all data “will be Deleted Permanently and you will not hear from us again.”

However, law enforcement strongly discourages paying the hackers because it incentivizes future attacks. Furthermore, there is no guarantee that the threat actor will not privately sell the information.


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