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Kelp attack spreads risk across DeFi, $293M lost

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Kelp attack spreads risk across DeFi, $293M lost

Kelp, a liquid restaking platform, reported a cyber attack on Saturday that affected its rsETH token operations. 

Summary

  • Kelp exploit targeted rsETH bridge contract, leading to $293 million loss within a short period.
  • Stolen funds moved through Tornado Cash, with large portion converted into Ether across networks.
  • DeFi platforms froze rsETH activity after contagion risk spread across at least nine connected protocols.

The team detected unusual cross-chain activity and quickly paused smart contracts across the main network and several Layer-2 systems. The platform stated that it “investigates” the issue while assessing the full scope of the breach.

Meanwhile, the exploit focused on the rsETH adapter bridge contract. This component manages token transfers across chains. 

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Blockchain security firm Cyvers estimated losses at around $293 million. The attacker gained access to funds by targeting this contract, leading to a large outflow within a short time.

Cyvers reported that the attacker used an address funded through Tornado Cash. This tool is often used to obscure transaction trails. A large portion of the stolen funds, about $250 million, has already been converted into Ether.

The movement of funds has raised concerns among platforms connected to rsETH. Monitoring teams continue to track the assets as they move across networks. No recovery of funds has been confirmed so far. Kelp has not released further technical details about the breach at this stage.

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Moreover, the attack caused what Cyvers described as “cross-protocol contagion.” At least nine crypto platforms had exposure to rsETH and took action to limit risk. Many of them paused or restricted activity involving the token.

Aave confirmed that it froze rsETH markets on its V3 and V4 platforms. This step aimed to prevent further losses and contain risk. Cyvers CEO Deddy Lavid stated that the event “highlights the risks of composability in DeFi,” referring to how connected systems can spread risk quickly.

Rising Security Concerns in Crypto Sector

The Kelp incident adds to a growing list of crypto platform breaches. Data shows that losses from hacks and scams reached about $482 million in the first quarter of 2026. These events continue to affect user confidence and platform operations.

Another recent caseinvolved Drift Protocol, which lost about $280 million in an exploit. The platform reported that attackers spent months gaining access before deploying malware. These incidents show ongoing challenges in securing decentralized finance systems.

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Crypto World

Aluminum Giant Alcoa to Sell Dormant Smelter to Bitcoin Miner NYDIG: Report

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Aluminum Giant Alcoa to Sell Dormant Smelter to Bitcoin Miner NYDIG: Report

US aluminium giant Alcoa is reportedly nearing a deal to offload its long-idle Massena East smelter in upstate New York to Bitcoin mining firm New York Digital Investment Group (NYDIG).

The company is in advanced discussions and expects the transaction to close “in the middle part of this year,” CEO Bill Oplinger told Bloomberg on Friday. The site, located along the St. Lawrence River, has been inactive since 2014 after Alcoa shut it down amid rising energy costs and global competition.

Built for 24/7 heavy industrial operations, aluminum smelters come with pre-existing substations, transmission lines and high-capacity grid connections. That makes them attractive targets for Bitcoin miners and data center operators, who often spend years securing similar infrastructure approvals from scratch.

Massena East also benefits from hydropower supplied by the New York Power Authority, a key draw for energy-intensive computing firms seeking low-cost and lower-carbon power sources.

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Related: Bitcoin mining difficulty falls, but projected to rise in next adjustment

US smelters reborn as crypto, AI data centers

The potential sale comes amid a broader trend across the US, where retired industrial sites are being repurposed for digital infrastructure. Earlier this year, Century Aluminum sold its Hawesville smelter in Kentucky to TeraWulf for $200 million, with plans to convert it into a high-performance computing and AI facility rather than traditional industrial use.

TeraWulf shares are up 80% YTD. Source: Yahoo! Finance

Meanwhile, NYDIG has been growing its footprint in Bitcoin (BTC) mining infrastructure. The firm, owned by Stone Ridge, already holds a stake in Coinmint, which operates mining hardware at the same campus under a long-term lease.

Last year, Crusoe Energy also agreed to sell its Bitcoin mining business, including its digital flare mitigation operations, to NYDIG.

Related: HIVE plans $75M raise to fund AI infrastructure push

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Bitcoin miners pivot to AI

NYDIG’s renewed push into Bitcoin mining comes as other miners are increasingly pivoting toward AI and cloud computing as shrinking margins in mining push them to diversify revenue streams.

Earleir this year, MARA Holdings acquired a 64% stake in French infrastructure company Exaion, giving the company a foothold in AI services. Other miners, including Hive, Hut 8, TeraWulf and Iren, are also repurposing mining facilities into data centers, while some, such as CoreWeave, have fully transitioned into AI-focused infrastructure.

Magazine: Bitcoin may take 7 years to upgrade to post-quantum — BIP-360 co-author