Yearn core developer banteg tweeted that the WETH attacks that have occurred since 2019 have not been noticed by the community. There is a discrepancy between the supply of , where the amount on the contract seems to be 1 Wei more than what is owed (Foresight News note: 1 ETH = 10 to the 18th power Wei)". He stated that "when a user sends ETH to the contract, the contract generates a token, it does not track the token supply, but uses its own ETH balance, but there are two ways to send ETH without triggering the contract: first , the user can set it as a block reward recipient, it will update the state, but will not run the contract code; secondly, the hacker uses the self-destruct function (soon to be sent), it will destroy the contract and remove all ETH balances to another address without alerting it".