Aethir, a decentralized GPU cloud infrastructure for AI, said it detected and stopped an attack on its cross-chain bridge contracts connecting Ethereum to other chains. The team announced on Friday that it isolated the compromised bridge contracts and disconnected them to halt the exploit.
Aethir said it worked quickly with major exchanges to blacklist tracked attacker wallets, which helped limit the platform’s losses to under $90,000. That figure contrasts with an earlier alert from blockchain analytics firm PeckShield, which on Thursday flagged an exploit of Aethir’s AethirOFTAdapter cross-chain smart contract and estimated losses around $400,000. PeckShield reported that the exploiter moved stolen funds from BNB Chain to Tron and published several addresses it was tracking.
According to Aethir, the project’s primary ATH token supply on Ethereum remains intact and was not affected by the incident. The team said it will publish a full compensation plan next week and will share a list of attacker wallets, a detailed post-mortem and a repayment schedule on its Discord channel. Aethir also said it is cooperating with authorities and exchanges to trace the perpetrators and freeze recovered funds.
Aethir named several partner exchanges that responded to its alerts, including Binance, South Korea’s Upbit and Bithumb, and HTX. Web3 cybersecurity firm ZeroShadow assisted with technical analysis of the incident.
The breach comes amid a broader uptick in DeFi attacks: nearly $170 million was stolen from multiple protocols in the first quarter of 2026, according to industry tallies.
Aethir provides a decentralized GPU cloud that aggregates GPU resources worldwide for AI, gaming and enterprise workloads rather than relying on centralized data centers. The company reported $127.8 million in revenue in 2025 and said its decentralized physical infrastructure network (DePIN) included at least 440,000 GPU containers across 94 countries by year-end. Aethir counts investors such as Animoca Brands and HashKey and has raised more than $140 million for its ecosystem.
Aethir’s update reiterates that the immediate breach was contained and that further details, including remediation and compensation steps, will be released shortly.