The attack targeted a third-party protocol, not Arbitrum's native bridge, according to Offchain Labs.
Markus Winkler
PeckShield, another security firm, flagged that the attacker bridged the stolen funds from Arbitrum to Ethereum and swapped them for 12,467 ETH.
Offchain Labs, the development firm behind Arbitrum, clarified that the exploit affected only AFX Trade and did not compromise Arbitrum's native bridge. This distinction addresses potential confusion about the scope of the attack.
The attacker bridged the stolen funds from Arbitrum to Ethereum and swapped them for 12,467 ETH.
Security firms have identified that the attacker utilized a sufficient number of hot-validator signatures to authorize a withdrawal of 24.15 million USDC, slightly increasing the reported loss from the initial estimate of 24 million dollars.
Security firms revealed that the attacker leveraged sufficient hot-validator signatures to authorize a 24.15 million USDC withdrawal, a slight increase from the initial 24 million estimate. In response to the breach, AFX Trade has officially offered the hacker a 30% bounty of the stolen funds in exchange for their return.
