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Cloudflare’s 2029 quantum sprint raises Bitcoin alarm bells

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Cloudflare’s 2029 quantum sprint raises Bitcoin alarm bells

Cloudflare, one of the world’s largest CDN and internet edge networks, has substantially accelerated its deadline to migrate to post-quantum cryptography amid fears that hardware breakthroughs could render current encryption obsolete within three years.

The quantum-vulnerable Bitcoin community rang alarm bells after the giant move.

Cloudflare announced its new post-quantum deadline, joining Google in an aggressive security sprint targeting 2029.

Two-thirds of human traffic to Cloudflare already uses post-quantum encryption, but the company wants that at 100% within three years.

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Google set the same 2029 deadline two weeks ago, flagging concerning breakthroughs in quantum hardware, error correction, and factoring. The search engine giant has also already deployed post-quantum protections across Chrome, Android 17, and Google Cloud, and is forcing other engineering teams to follow suit.

By 2029, IBM plans to deliver its first fault-tolerant quantum machine, Starling.

The quantum breakthroughs just keep coming

The announcements continue a blistering pace of quantum breakthroughs over the last few weeks.

On March 30, Google Quantum AI released a whitepaper showing that fewer than 1,200 logical qubits could theoretically solve Bitcoin’s 256-bit Elliptic Curve Discrete Logarithm Problem.

On superconducting hardware, that meant fewer than 500,000 physical qubits by its estimate. That’s roughly a 20-fold reduction from the prior benchmark of approximately 9 million set in 2023. 

The same day, Oratomic, a quantum startup founded by Caltech and Harvard faculty, theorized that Shor’s algorithm could run at cryptographically relevant scales with as few as 10,000 reconfigurable neutral-atom qubits, a step-change improvement in solving 256-bit elliptic curve discrete logarithms.

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On April 5, IQM Quantum Computers and Germany’s Fraunhofer FOKUS compiled Shor’s algorithm, gate by gate, at RSA-2048 scale — a first by quantum researchers.

Prior estimates for cracking RSA-2048 relied on symbolic extrapolation and theoretical modeling, whereas this research team produced a gate-by-gate assembly with an exact qubit budget.

Read more: Google’s quantum computer could break Bitcoin in two ways

Bitcoin has a big quantum problem

There are well over $100 billion in quantum-vulnerable bitcoin (BTC), including legacy wallets such as Satoshi Nakamoto’s holdings.

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Chaincode Labs, Bitcoin’s hub for technical development, estimated a comprehensive post-quantum migration could take seven years. 

Taproot, Bitcoin’s prior upgrade, took four years from proposal to activation, while SegWit required two.

Approximately 1.7 million BTC have permanently exposed public keys. Chaincode puts the broader vulnerability to a cryptographically-relevant quantum computer at 20-50% of BTC, worth as much as $680 billion.

Justin Drake, a pro-Ethereum researcher who co-authored Google’s whitepaper, believes there’s at least a 10% chance a quantum computer recovers a Bitcoin private key by brute force from an exposed public key by 2032.

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Bitcoin has a market capitalization of $1.36 trillion with a software upgrade process measured in years. Cryptographically-relevant quantum computers also have a deadline measured in years and could have as few as three left, according to Cloudflare, Google, and IBM.

Got a tip? Send us an email securely via Protos Leaks. For more informed news, follow us on X, Bluesky, and Google News, or subscribe to our YouTube channel.

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Claude Mythos AI Model Launched by Anthropic to Address Security Gaps

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Brian Armstrong's Bold Prediction: AI Agents Will Soon Dominate Global Financial

TLDR

  • Anthropic unveiled its new AI model, Claude Mythos, designed to enhance cybersecurity by identifying high-severity vulnerabilities in systems.
  • The Mythos model has already detected thousands of flaws across major operating systems and web browsers.
  • Anthropic launched Project Glasswing, a partner program offering select organizations early access to the Mythos model for defensive tasks.
  • The company committed up to $100 million in usage credits and $4 million in donations to support open-source security initiatives.
  • Anthropic decided not to release the Mythos model widely, citing the need for further safeguards to ensure its safe deployment.

Anthropic introduced its latest AI model, Claude Mythos Preview, on Tuesday, focusing on cybersecurity. The model aims to strengthen defenses against cyber threats by identifying vulnerabilities and developing exploits with little human oversight. This move comes weeks after a security lapse exposed Claude’s code, which drew significant attention to Anthropic’s internal security measures.

New AI Model Targets Cybersecurity Threats

Claude Mythos Preview represents Anthropic’s cutting-edge effort in cybersecurity, designed to uncover high-severity vulnerabilities. In its testing, Mythos has already identified thousands of flaws across major systems, including operating systems and web browsers. According to the company, this new model aims to equip defenders with advanced tools before cyber attackers can harness similar AI capabilities.

Project Glasswing, a partner program, was also announced alongside the Mythos model. It offers early access to the new AI system for select companies like AWS, Google, and Microsoft, among others. More than 40 organizations will be part of the initiative, with Anthropic committing up to $100 million in usage credits to support the program.

Anthropic Pushes for Secure Deployment

Despite Mythos’s promising capabilities, Anthropic has decided against a wide release. The company emphasized the need for further safeguards before deploying Mythos at scale. “Our goal is to ensure that this powerful tool can be deployed safely and responsibly,” an Anthropic representative stated.

This caution follows a mishap earlier this year when a packaging error exposed Claude’s code. The incident led to the accidental release of over 500,000 lines of code, causing a significant security breach. Anthropic’s attempt to take down the leaked files further escalated the issue, as it mistakenly removed thousands of GitHub repositories.

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Large-Scale Support for Cybersecurity Defenders

Project Glasswing’s partner organizations will be among the first to test Claude Mythos. These partners include some of the largest players in technology and infrastructure, with the Linux Foundation and Palo Alto Networks joining the program. The initiative aims to harness Mythos’s ability to identify and exploit vulnerabilities while prioritizing the security of its deployment.

Along with the partner program, Anthropic has pledged $4 million in donations to open-source security groups. The company’s focus on supporting cybersecurity initiatives highlights its commitment to safeguarding against advanced cyber threats. However, Mythos’s future remains uncertain, as Anthropic continues to refine its defensive capabilities before making the model more widely available.

The development of Mythos marks a significant step in the AI-driven defense against cybersecurity risks, though Anthropic remains cautious about its broader use.

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Doordash crypto wrench attack suspects charged, report

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Doordash crypto wrench attack suspects charged, report

Three suspects in a crypto wrench attack ring have been charged, according to reporting from the San Francisco Chronicle.

According to the reporting, the three men have been charged in two specific crimes, but police believe that they’re part of a larger operation and are tied to several similar crimes.

The criminals apparently used a similar technique for these crimes, namely:

  • Identifying a major cryptocurrency holder.
  • Researching and surveilling that cryptocurrency holder. A detective who spoke to the Chronicle described this, saying, “They figure out your trends, your life cycle, what do you normally order online, What do you normally order for takeout?”
  • The criminals attempt to gain access to accounts; in the case of one victim who spoke to the Chronicle, “for me, it was my DoorDash and Uber Eats accounts.”
  • The criminals would then create a fake delivery, meet the victim at the door, and then threaten them.

Wrench attacks are inherent risk

Cryptocurrency’s censorship-resistant transfers as well as its pseudonymous nature make holders an attractive target for these types of attacks.

These attacks that don’t try to bypass the cryptographic security that protects the assets but use threats and violence to influence the person who has access to the keys.

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Indeed, kidnappings and extortion have become an international problem for cryptocurrency holders and firms.

Read more: French crypto tax firm targeted in ShinyHunters extortion attempt

These attacks have included French firm Waltio and UK-based Sillytuna.

France has become something of a leader when it comes to this type of activity, with even Ledger co-founder David Balland targeted.

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The utility of cryptocurrency for this type of attack has resulted in even non-cryptocurrency holders having ransoms demanded in bitcoin (BTC). Prominently, Nancy Guthrie, the mother of TODAY Show host Savannah Guthrie, has been kidnapped and her apparent kidnappers have sought the ransom in BTC.

Got a tip? Send us an email securely via Protos Leaks. For more informed news, follow us on XBluesky, and Google News, or subscribe to our YouTube channel.

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BTC Accumulation Hits 4.37M as Network Activity Sends Mixed Signal

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Cryptocurrencies, Bitcoin Price, Bitcoin Analysis, Adoption, Markets, Market Analysis, Bitcoin Adoption, Bitcoin ETF, Bitcoin Reserve

New data suggests that Bitcoin (BTC) could be moving closer to a bull market phase as its supply slowly shifts back into long-term, retail-investor-linked wallets. The figure surpassed 4 million BTC in Q1 2026.

The accumulation trend aligns with a rise in Bitcoin network activity index to levels last seen in April 2025, signaling a return of stronger network activity.

Bitcoin long-term wallets expand holdings

CryptoQuant data shows that balances held by accumulating address cohorts continued to rise into Q1 2026. The total BTC held by these cohorts has crossed 4.37 million BTC as of April 7, up from about 2 million BTC in early 2024, signaling sustained supply absorption.

Cryptocurrencies, Bitcoin Price, Bitcoin Analysis, Adoption, Markets, Market Analysis, Bitcoin Adoption, Bitcoin ETF, Bitcoin Reserve
BTC balance held by accumulating address cohorts. Source: CryptoQuant

The retail-investor-linked accumulation addresses added roughly 857,000 BTC, while the accumulating pattern wallets, defined as addresses that steadily add BTC at recurring intervals with minimal outflows, expanded to 1.29 million BTC.

This growth occurred while the price remained capped below $70,000 throughout the first quarter of 2026.

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In contrast, the inflows from centralized exchanges and highly active addresses have slowed. During the 2023–2024 expansion phases, the inflows often exceeded 1.2 million to 1.5 million BTC. The recent activity has averaged 300,000 to 350,000 BTC.

Cryptocurrencies, Bitcoin Price, Bitcoin Analysis, Adoption, Markets, Market Analysis, Bitcoin Adoption, Bitcoin ETF, Bitcoin Reserve
Bitcoin inflows by address activity type. Source: CryptoQuant

The divergence shows a shift in coin distribution. More BTC is moving into long-term wallets, while fewer coins are circulating on the exchanges. This indicates a tightening of the liquid supply and a reduction in short-term trading turnover.

Related: Bitcoin holds $67K support as data exposes price to sentiment divergence

Bitcoin network activity index highlights the trend

The CryptoQuant Bitcoin network activity index has climbed to 3,600 from 3,320 on March 22. The index aggregates broader usage signals, including transaction counts and network throughput. 

Cryptocurrencies, Bitcoin Price, Bitcoin Analysis, Adoption, Markets, Market Analysis, Bitcoin Adoption, Bitcoin ETF, Bitcoin Reserve
Bitcoin network activity index. Source: CryptoQuant

As observed in the chart, it has moved above its 365-day moving average for the first time since December 2024 and entered the “bull-phase” classification for the first time since April 2025.

In parallel, Bitcoin’s active addresses momentum dropped to -0.25 on April 6, the lowest reading since April 2018. The metric tracks the rate of change in active addresses, with negative values pointing to declining user participation.

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Cryptocurrencies, Bitcoin Price, Bitcoin Analysis, Adoption, Markets, Market Analysis, Bitcoin Adoption, Bitcoin ETF, Bitcoin Reserve
BTC active addresses momentum. Source: CryptoQuant

The low activity levels have persisted since July 2025, echoing a similar stretch in 2024 that preceded a 35% price decline.

According to crypto analyst Gaah, the drop in activity signals the absence of short-term participants, or “tourists.” The network usage is now dominated by long-term holders focused on accumulation.

Historically, low readings have aligned with profitable accumulation phases. The reduced activity often coincides with lower sell pressure as the coins move into long-term wallets. 

Related: Bitcoin’s quantum challenges are ‘more social than technical’: Grayscale