Money Mule

Fraudsters often route stolen money through intermediary accounts (money mules) to obscure the trail before final withdrawal - sometimes recruiting mules knowingly with a cut of the money, sometimes tricking people into believing they're doing a legitimate favor or part-time job by moving money through their own account. Regardless of intent, an account used this way can face freezing, and the account holder can face genuine legal scrutiny - a strong reason to never let anyone else route money through your bank account, even for someone you know, without being certain of the money's actual source.