After an official denial of a hacker attack by a major exchange, another possible explanation has emerged within the community—funds being moved through wash trading. This is not an isolated case. I have personally experienced similar incidents. Apparent abnormal fund flows are not always due to external attacks; they can also be internal fund manipulations through wash trading techniques. Such risks are often more covert because they disguise themselves as normal trading activity. Users need to be vigilant not only about hacker threats but also about internal risk vulnerabilities within exchanges. The complexity of fund security issues far exceeds surface-level judgments.