"The API Key Leaker"

This character tries to be clever by using a third-party automated trading bot. They create an "API Key" in their Binance/Bybit account and hand it over to the bot service. The fatal mistake: they forget to uncheck the "Enable Withdrawals" permission, or the bot service is hacked. As a result, the balance in their exchange account is completely drained or forcibly wash traded to zero by hackers through the API backdoor.