Exchange Failures: The Warning Signs That Appeared Beforehand
Every major exchange collapse produced public signals before withdrawals stopped. Here is what they were, and what they look like in advance.
Priya Raman · 2 min read
The failures that removed the most customer money from this sector were not sudden. Each one produced observable signals for weeks or months beforehand, and in each case a substantial number of people saw them and stayed anyway.
The signals, in the order they usually appear
Withdrawal delays described as technical. The first and most reliable signal. A platform that can meet withdrawals meets them. Delays framed as “network congestion” or “upgrade maintenance” while other venues process normally are a solvency signal, not a technical one.
Unusually high yields on deposits. A platform paying materially more than the market rate is either taking risks it has not disclosed or paying from capital. Both end the same way.
Opacity about where assets are held. A straightforward question about custody arrangements that receives a marketing answer.
Related-party lending. Funds moving between the exchange and an affiliated trading firm. This was the mechanism in the largest failure in the sector’s history and it was documented in public reporting before the collapse.
Executives responding to reports with personal attacks. A pattern across multiple cases. A solvent firm publishes a balance sheet. An insolvent one attacks the reporter.
Aggressive expansion during a downturn. Sponsorships, naming rights and marketing spend that does not match observable revenue.
Auditor problems. A resignation, a refusal to sign, or an attestation from a firm nobody has heard of.
What proof of reserves does and does not show
After 2022, many exchanges began publishing reserve attestations. These are an improvement and they are frequently oversold.
What they show: that the exchange controlled certain assets at a point in time, and in better implementations, that those assets covered customer balances at that moment.
What they do not show: liabilities. An exchange can demonstrate assets while owing more than it holds elsewhere. A reserve attestation without a corresponding liability audit is half a picture.
What to look for: whether the attestation covers liabilities as well as assets, whether it uses a cryptographic method allowing individual customers to verify their balance is included, and who performed it.
The structural defence
None of this analysis is necessary for assets you hold yourself.
The rule that survives every case in this category: an exchange is where you buy and sell, not where you store. Long-term holdings belong in a wallet whose keys you control, and the working balance should be sized so that losing it entirely would be an annoyance rather than an event.
For that working balance, the practical criteria are regulatory registration in a real jurisdiction, a published company address, withdrawal processing that works consistently, and account security that does not depend on SMS. An exchange you can actually contact meets a lower bar than a custody solution needs to meet, which is precisely why the amount left there should be small.
The behavioural pattern in victims
In the documented cases, a recurring theme is people who saw the signals, discussed them, and did not act, for two reasons.
The first is that withdrawing felt like an overreaction, and being wrong publicly is uncomfortable.
The second is that the platform was convenient, and the cost of moving was immediate while the risk was hypothetical.
Both are rational-sounding and both were expensive. The asymmetry is the point: withdrawing unnecessarily costs a transfer fee, and not withdrawing can cost everything.
Move any remaining funds to a wallet with a newly generated seed phrase before anything else. Then revoke token approvals, and report the incident to your local authorities and the exchange involved. Do not pay anyone who promises to "recover" your coins. That is a second scam, aimed at victims of the first.