Symbiosis BSC bridge exploited, attacker nets $336K

An exploit hit the BNB Chain bridge of cross-chain protocol Symbiosis, on-chain security firm Blockaid said. The attacker abused a signed receive request in BridgeV2 to mint about 46.1 billion syBTC to a new address, then sold about 4.39 WBTC on Ethereum-based Uniswap V4, pocketing about $336,000 so far, according to Blockaid.