THORChain halts swaps after block reorg bug, slowing Binance hackers
THORChain node operators paused swaps involving assets on 10 networks, including Bitcoin, Ethereum, Solana and Tron.
THORChain node operators paused swaps involving assets on 10 networks, including Bitcoin, Ethereum, Solana and Tron.
THORChain halted swaps across multiple blockchains on Saturday after an Ethereum block reorganization exposed a refund bug, which may have inadvertently slowed the movement of funds stolen from Binance, according to Chainalysis.
According to THORChain, the incident began at 11:34 UTC on Saturday, when a one-block reorganization on Ethereum removed a 10 ETH deposit that THORChain had already credited. When the swap failed to meet its price limit, THORChain issued a refund against funds the vault had never received. The sender’s actual deposit was also refunded, resulting in an extra 10 ETH payout, which then triggered an automatic pause.
“Until the service comes back online, neither the hackers nor anyone else can swap through a majority of THORChain’s bridges,” said Chainalysis.