Received a stranger's call claiming abnormal bank card transactions, suspected money laundering, and requesting cooperation with the investigation? Even seasoned crypto enthusiasts would be startled. But the more important thing is to stay calm — many scams take advantage of people's panic. Master these three response tips to cooperate with legitimate investigations while protecting your wallet and information security.

**Level 1: Clarify the nature of the transaction and stay firm**

When asked about the legality of your transactions, you can say: "I conduct virtual currency trading through a legitimate platform, which is compliant personal trading, but I cannot confirm the source of the other party's funds. If it involves suspicious accounts, I am fully willing to provide all transaction records and proof." This clearly states your position, shows sincerity, and prevents being induced into admitting unnecessary responsibility.

**Level 2: Be immediately alert if asked to transfer funds — this is a key scam signal**

If the other party demands "immediate return of funds to a designated account" or "advance compensation," refuse on the spot. The correct response is: "I cooperate with the investigation, but any fund handling must go through legal procedures. I can organize transaction screenshots and account details immediately." — Remember this ironclad rule: genuine law enforcement will never ask you to transfer money privately. Requests for direct transfers are either scams or illegal operations.

**Level 3: Assess the situation and keep your footing**

If you accidentally receive illegal funds, usually only the related accounts will be frozen, and after providing evidence, you generally won't be held personally responsible; but if you knowingly participate in illegal transactions, the consequences can be severe. The key is to actively cooperate and keep all transaction evidence.

**Final practical tip**: Make it a habit in daily transactions — verify the identity of your trading partners, trace the source of funds, and verify the security of wallet addresses. In the virtual currency trading field, caution always beats quick profits. Those with strong security awareness are much less likely to fall into traps.