Making money in the cryptocurrency world may not be difficult, but many newcomers stumble when withdrawing to bank cards: money that was normally received from selling coins a few months ago is suddenly frozen by the bank on the grounds of being involved in a case, leaving them dumbfounded. Today, I will thoroughly explain the ins and outs of this.

One, why is there no issue during the transaction, but problems arise afterward?

The key lies in the lag in tracing funds. For example:

• Scammers use the victims' money to transfer funds to you, and you can't see it at the time.

• The other party may be using cards from a score-running gang or impersonating someone else's account.

• Banks and platforms cannot identify illicit funds in real time.

After the victims report to the police, the police will trace the fund flow for the past six months. If your account happens to be on the fund chain, you may be implicated. Note that this is just an investigation process and does not imply you are guilty.

Two, these operations are most likely to be targeted.

• Frequent changes of receiving cards + logging in from different locations.

• Transaction remarks should include sensitive words like "Bitcoin" and "USDT."

• Accounts that frequently deposit and withdraw resemble transit stations.

• The payer and platform have inconsistent real names (for example, the other party uses Zhang San's card to transfer money to you, but the platform certification is Li Si).

Three, what to do if frozen?

1.

Immediately save all evidence: chat records, transaction screenshots, bank statements.

2.

Proactively contact the freezing authority and submit materials as required (usually requires a certificate from the trading platform).

3.

Do not transfer funds privately to "unfreeze"; all fund handling must go through formal legal procedures.

4.

If necessary, hire a professional lawyer for assistance.

Four, Prevention Guidelines

• Only trade with certified merchants from mainstream exchanges.

• Must have "three-in-one": platform order, payer, and chat account must be consistent with real names.

• Single transactions should not exceed 50,000, and daily accumulations should not exceed 200,000.

• Use a dedicated bank card to isolate funds, separating them from your living account.

• Keep complete transaction records for at least one year.

Remember: there is currently a high incidence of telecom fraud, and all funds from unknown sources may become ticking time bombs. It's better to earn a little less than to ensure the fund chain is clean.