In cryptocurrency trading, the safety of funds is not only about preventing market fluctuations but also about how to protect the profits that have already been gained. Recently, an investor encountered a disturbing situation: after successfully withdrawing 600,000 USDT to their bank card, they suddenly received a notification of the account's non-counter service suspension, and the funds became completely inaccessible.

The root cause of this situation is usually 'fund contamination'. Criminals use illegal gains to purchase USDT, which flows into ordinary user accounts after multiple transactions. Once upstream victims report to the authorities, accounts along the entire funding chain may be frozen, and even innocent transaction participants may be implicated.

Although account freezing does not equate to illegal activity, in most cases, it can be thawed by providing transaction evidence, but this process may take 1-3 months, causing significant inconvenience to users. Therefore, taking preventive measures is crucial.

Here are some practical protection tips:

1. Set up a dedicated trading account: Open a separate bank card for Crypto Assets trading, separate from your daily use account, to reduce the risk of being implicated.

2. Carefully choose trading partners: During over-the-counter trading, prioritize long-term active users with good credit and large trading volumes, and avoid trading with newly registered or suspicious accounts.

3. Pay attention to transfer details: For large transfers, it is recommended to split them into multiple smaller amounts (within 50,000) and try to operate during working days in the daytime. Transfer notes should avoid using sensitive terms and can use neutral expressions such as 'service fee' or 'payment'. In addition, it is advisable to wait a few days after the funds arrive before proceeding with subsequent operations to reduce the risk of immediate freezing.

In crypto assets investment, protecting asset security is as important as pursuing profits. Investors should not only focus on market fluctuations but also fully understand and implement these capital security measures. Only by ensuring that profits can be safely secured can one truly achieve profitability. As the industry develops, I hope that more measures will be introduced in the future to protect investors' rights, bringing a healthier development environment to the crypto assets market.