According to Scam Sniffer, the user accidentally signed a malicious transaction that allowed the waste of tokens, as a result of which he lost $24.23 million in stETH and rETH.
An interesting fact is that the victim’s wallet has been active since 2017 and has constantly interacted with DeFi protocols such as Uniswap, Aave, 1inch, Curve, OMG, EOS, etc.