An exchange can temporarily block an account because of sanctions, a fraud investigation, stolen funds or market abuse. But what happens when the reason stays vague, the procedure drags on for months and a trader cannot withdraw millions? The case between MEXC and the pseudonymous trader The White Whale shows how quickly “risk control” can turn into a crisis of confidence.
What happened?
In July 2025, MEXC froze an account belonging to The White Whale that reportedly held around 3.15 million dollars in funds. The exchange pointed to risk control measures and allegedly abnormal trading behaviour. The trader denied having used bots, market manipulation or any other prohibited conduct.
According to the trader's public account, MEXC pointed among other things to two orders that had been placed within the same second. Additional in-person verification in Malaysia is also said to have been required. These details have been described publicly by the trader and in press reports; ExchangeFacts has no access to the full customer file or to the internal detection rules.
After a months-long public campaign, support from the crypto community and pressure from on-chain researcher ZachXBT among others, the funds were released at the end of October 2025. MEXC CSO Cecilia Hsueh publicly apologised for the way the case had been handled.
MEXC publicly admitted that it went wrong
On 31 October 2025, MEXC CSO Cecilia Hsueh wrote publicly: “We fucked up.” She apologised to The White Whale and reported that his money had been released.
The White Whale responded publicly to the release shortly afterwards. That response is relevant because it confirms that the block had ended, but it does not prove that every earlier factual allegation by either party is correct.
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When may an exchange block an account?
An account freeze is not automatically wrongdoing. An exchange can be legally or operationally obliged to restrict access temporarily in the event of:
- a sanctions or AML match;
- a request from the police or prosecutors;
- a suspected account takeover;
- stolen or hacked funds;
- wash trading, spoofing or market manipulation;
- missing or contradictory KYC information;
- a risk to the orderly functioning of the market.
MEXC states in its own policy that accounts can be frozen temporarily when its systems flag potentially improper trading behaviour. The company names, among other things, wash trading, self-trading, front-running, layered orders and other forms of market manipulation.
The real quality question is therefore not only whether an exchange can block, but how that process is set up.
Where did it go wrong?
What made the MEXC case damaging above all was the lack of predictability.
An unclear ground
“Risk control” says little when a user is not told which specific action is being investigated. An exchange does not have to disclose its detection rules in full, but it does have to provide enough information for a decision to be understood and challenged.
No clear deadline
A temporary review without a decision deadline can in practice turn into an open-ended block. It also matters to a trader whether only withdrawals, only trading or the entire account is restricted.
No independent escalation
When the same department flags the account, assesses the appeal and controls the communication, a credible correction mechanism is missing.
Public pressure became decisive
The release followed only after an extensive public campaign. That raises an uncomfortable question: does a well-known trader with reach get access to his money faster than an ordinary customer with the same problem?
Is MEXC an exception?
No, account freezes occur at more centralised exchanges. That does not mean that every reported block is unjustified. Public complaints usually reflect only the user's version; because of privacy, criminal investigations or anti-money-laundering rules, exchanges often cannot share every detail.
The sources supplied include recent public complaints about Bitget and Gate.io:
| Exchange | Publicly reported issue | Example | Evidence status |
|---|---|---|---|
| Bitget | Account or withdrawal under “risk control” | A user reported in June 2026 that around $8,500 had been blocked and that support gave only standard replies | Individual user claim; not independently verified |
| Bitget | Repeated freeze or additional verification | Several users described freezes in 2026 following withdrawals, P2P transactions or a compliance review | Pattern signal from scattered posts; no evidence of structural policy |
| Gate.io | Lengthy review after a large profit | A user claimed in April 2026 that around $2.38 million had been blocked for almost thirty days | Individual user claim; the other side still has to be heard |
| Gate.io | Slow handling and tokens blocked for a long time | Other users described P2P problems and very long support processes | Individual user claims; not independently verified |
These reports are journalistic leads, not final conclusions. Before publication as a separate exchange case, at minimum the ticket history, wallet transactions, terms and conditions, the exchange's response and the eventual outcome have to be checked.
Selected original reports
- Bitget complaint about around $8,500
- Bitget complaint from a VIP user about 50,000 USDT
- Gate.io complaint about an account of around $2.38 million
- Gate.io complaint about tokens frozen for a long time
Four types of freeze that should not be lumped together
1. Security freeze
The exchange suspects that an account has been taken over. Login, withdrawals or API access is temporarily blocked in order to protect the customer.
2. Compliance freeze
A transaction touches on sanctions, money laundering indicators, stolen funds or a request from a competent authority. The exchange may be legally restricted in what it is allowed to tell the customer.
3. Market integrity freeze
Systems flag possible wash trading, spoofing, self-trading, abuse of promotions or other prohibited trading activity. Here the trading rules have to be sufficiently objective in advance.
4. Commercial or discretionary risk control
The terms give the exchange broad authority to restrict an account without concrete public criteria or a fixed deadline. This is the hardest category for traders to assess and creates the biggest risk of arbitrariness.
The article should therefore not simply count the number of complaints. ExchangeFacts should above all assess which category is applied, which procedure follows and whether the user can effectively challenge a decision.
Is a freeze the same as confiscation?
No. In a freeze, the funds in principle continue to belong to the customer, but the customer temporarily cannot dispose of them. Confiscation or forfeiture is a far more serious step and requires a clear contractual or legal basis.
An exchange therefore has to be transparent about:
- which functionality is blocked;
- which rule or legal obligation the block rests on;
- which supporting documents are still needed;
- which decision deadline applies;
- how appeal or escalation works;
- what happens to open positions during the block.
What traders can check in advance
Account freeze risk is rarely stated on a fee page. Yet it can matter financially more than a few basis points of difference in trading costs.
So check:
- Legal entity — which company are you entering into the agreement with?
- Licence — is there a regulator or an external complaints route?
- Terms — how broadly are “risk control” and “abnormal trading” defined?
- Open positions — can an account be liquidated during an investigation?
- Turnaround times — does the exchange publish deadlines for reviews?
- Appeal — is there a separate compliance or complaints procedure?
- Track record — are there recurring, well-documented freeze cases?
For professional traders, spreading capital matters too. Concentrating operating capital on a single trading platform creates a counterparty risk that is not visible in VaR or liquidation models.
Proposal for an ExchangeFacts Account Access Score
Account freezes could later be added to exchange reviews as a component of their own. A transparent score could consist of:
- Clarity of rules: are the grounds for a freeze described concretely?
- Proportionality: is only the risky function restricted, or the entire account?
- Decision deadline: does the exchange publish a maximum review period?
- Status information: can the customer see which step is still outstanding?
- Appeal: is there a separate escalation or complaints route?
- Open positions: is it set out what happens to margin positions during the restriction?
- Supervision: can an external dispute body or regulator be called in?
- Track record: how many well-documented cases are there and how were they resolved?
An unconfirmed social media post should not automatically lower the score. A public admission, a court ruling, a regulatory decision or a demonstrably recurring pattern carries more weight.
What happened at MEXC afterwards
A public admission is not a conclusion. What happened in the nine months after 31 October 2025 says more about the platform than the apology itself.
Users first voted with their feet. According to DL News, bitcoin withdrawals at MEXC rose from around forty a day in July 2025 to more than twelve hundred a day at the end of October. On 31 October, the day of the apology, 39 million dollars went out the door. Its own MX token fell more than three percent that same day.
Then the leadership turned over. In April 2026, Vugar Usi Zade, who came from Bitget, was appointed general manager. On 22 July 2026, MEXC brought in Robert MacDonald, previously at Bybit, as chief compliance officer, with a brief to lead the global regulatory strategy. Two key positions filled anew within fifteen months, at a platform that in that same period received a warning from the AFM, was designated as unlicensed by the regulator in the Seychelles and was fined by VARA in Dubai.
On 30 July 2026, the executive who made the apology left. Cecilia Hsueh, chief strategy officer since September 2025 and the public point of contact in this case, announced her last day at MEXC on X. She herself draws no link to the case and says she wants to build again. One formulation does stand out: what she is most proud of is, in her own words, “pushing MEXC to become more transparent and more user-centric”. Transparency, then, was something that had to be pushed for internally, not a starting point. MEXC has not disclosed who takes that over after her departure, or whether the policy on blocks actually changes. See her announcement on X ↗
You can read that in two ways. As a company that is clearing things up seriously and bringing in people who know how supervision works. Or as a company where the staffing does not stay put. For anyone with money on the platform the explanation makes little difference: it means that the people deciding about your blocked account today are not the same ones as last year.
ExchangeFacts Verdict
Exchanges must be able to block accounts when legislation, security or market integrity requires it. But a broad clause should not be a blank cheque. A mature platform combines detection with concrete communication, proportionate restrictions, fixed deadlines and an independent route of appeal.
The MEXC case does not prove that every freeze is unjustified. It does show how quickly a legitimate risk control instrument loses its credibility when the user cannot see which rule applies, when a decision will follow and who can review that decision.
Sources
- MEXC: official statement on accounts involved in abnormal trading activities
- crypto.news: resolution of the White Whale dispute and public apology
- Cecilia Hsueh: public apology and confirmation of the release
- The White Whale: public response to the release
- The remaining public complaints supplied by the user are used solely as unconfirmed leads.