AFX bridge exploit drains $24.15M USDC as attacker buys 12,467 ETH

AFX suffered a $24.15 million USDC loss after an attacker targeted a cross-chain bridge linked to the trading protocol on July 22. Summary AFX’s cross-chain bridge lost $24.15 million USDC while Arbitrum’s native bridge remained unaffected during attack. The exploiter moved stolen USDC to Ethereum and converted the proceeds into 12,467.5 ETH afterward. Security firms are tracing the stolen funds as AFX and Arbitrum teams investigate the breach. The incident triggered an investigation by Blockaid and the Arbitrum team, while on-chain trackers followed the stolen funds to Ethereum. The attack did not affect Arbitrum’s native bridge. AFX operates its own sovereign Layer 1 for perpetual trading but accepts USDC deposits through Arbitrum. The affected infrastructure was a third-party bridge operated by AFX rather than Arbitrum’s core bridge. AFX bridge loses $24.15 million USDC Blockaid said it detected the exploit at 9:30 p.m. UTC on July 22. The firm said the attack targeted a bridge operated by AFX and drained about 24.15 million USDC. An Arbiscan record shows a successful transfer of 24,150,000 USDC from the bridge contract to the recipient address at 9:30:25 p.m. UTC. Blockaid dete...