Aethir says it has contained an exploit on its ATH bridge contracts and remains fully operational, with user losses kept below $90,000.
According to the project, the attack targeted ATH bridge contracts that connect Ethereum to other chains. Aethir says teams detected the malicious activity quickly, disconnected the affected contracts, and halted further damage. Crucially, the company confirmed the main ATH supply on Ethereum was not touched—helping prevent broader network disruption.
Key points
- Incident: Malicious activity on ATH cross-chain bridge contracts.
- Impact: User losses reported below $90,000; main ATH supply on Ethereum unaffected.
- Containment: Affected contracts disconnected; ETH-ARB bridge on Squid was not impacted.
- Next steps: Aethir will publish a full compensation plan next week and post a complete attacker wallet list in Discord.
Response and tracing
Aethir said it is cooperating with authorities and exchange partners to trace the attacker and block related funds. The team thanked several exchanges—Binance, Upbit, Bithumb, and HTX—for quickly blacklisting wallets tied to the incident, and credited ZeroShadow for assistance with analysis during the response.
Discrepancies in loss estimates
Blockchain security firm PeckShield flagged the issue a day earlier and initially estimated losses at roughly $400,000, noting funds moved from BNB Chain to Tron through multiple addresses. Aethir’s later figure of under $90,000 narrows the scope, but the gap highlights ongoing work in fund tracing and final accounting.
Broader context
The Aethir incident underscores a continuing pattern of cross-chain and DeFi risk. PeckShield reported that losses from 20 security incidents hit about $52 million in March—nearly double February’s total—and warned that exploits can cascade across linked DeFi platforms, hurting liquidity and lending markets. The security firm pointed to recent spillovers affecting projects such as ResolvLabs and Venus Protocol, and flagged high-profile targeted attacks on individuals, including a multimillion-dollar social engineering theft tied to Kraken. Similar incidents have continued into April.
Aethir said a detailed memo explaining what happened, which users were affected, and how compensation will work is coming soon. For now, users should follow Aethir’s official channels for updates and the forthcoming attacker wallet list.
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