[User] (https://etherscan.io/tx/0x2193ce2ac76895520bc7133a8bb9d5b6db6b573da4e4446ab2318f0d813b4b35) signed a phishing transaction and lost $3 million.
The scheme is as old as the world, but still works. To verify transactions before signing them, you can use, for example, the extension Pocket Universeием