Aethir Contains Bridge Exploit, Limits Losses to $90,000

Aethir, a decentralized GPU cloud network, detected and contained a malicious exploit targeting its ATH bridge contracts on March 21, 2025, limiting user losses to under $90,000. The attack affected cross-chain links between Ethereum and other networks, but the platform's main ATH token supply on Ethereum remained intact, and operations continued without interruption.

The incident involved unusual activity on the bridge contracts, which facilitate asset transfers across blockchains including BNB Chain, Tron, and others. Aethir's security team promptly disconnected the compromised contracts, including the AethirOFTAdapter smart contract, to halt unauthorized transfers. The company advised users to avoid interacting with specific suspicious addresses on networks such as Ethereum, Beam, Sophon, zkSync, and Solana. According to Aethir, the exploit was isolated and did not impact the core protocol or the ETHARB bridge on Squid.

Blockchain security firm PeckShield initially reported potential losses of around $400,000, noting that attackers bridged funds from BNB Chain to Tron via multiple addresses using Symbiosis Finance. However, Aethir's swift response reduced the final impact to...