Days in Operation:
100 pts each
THORChain (RUNE), a decentralized cross-chain transaction protocol, said it was attacked again, and many ERC20 tokens including XRUNE were affected. Thorchain told CoinDesk a whitehat hacker deployed a custom contract that was able to trick its Bifrost Protocol into receiving a deposit of fake assets. Not long ago, THORChain updated Eth Bifrost to allow the routing contract to be "encapsulated" by the contract. The attacker uses this to send a transaction with msg.value = 200 ETH and immediately uses the contract to transfer it back to itself, while Bifrost will report msg. value = 200 instead of depositAmount = 0, so as to realize the profit of calling the routing contract with the amount of 0 ETH. The attack was very restrained eluding that the attacker may be a whitehat hacker.
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