There are a few scams, e.g. "otc trades" conducted via discord, where the impersonation of a trusted party is already a topic even without AI. The easy solution is to reverse reach out anytime anyone asks for money / tells you to send money somewhere to check for impersonations. If the scammers use AI to impersonate the other person this can be also to a degree dealt with by asking a question from the past only the real counterpart would answer.