What Happens When an Exchange Fails, and How to Protect Yourself

When a custodial exchange fails, the balance on your screen usually becomes an unsecured claim in a bankruptcy rather than coins you can withdraw, which is why the protections that actually work are holding long-term balances in a wallet you control, keeping only what you are trading on any one venue, and treating withdrawal delays as a reason to act rather than to wait.

Three well-documented failures show how this plays out, and each one failed in a different way.

Your exchange balance is a claim, not a coin

An exchange account is a database entry recording what the exchange owes you. The coins behind it sit in the exchange's addresses, controlled by the exchange's keys. That arrangement is what custodial means, and it works fine right up until the company cannot meet its obligations.

At that point the question stops being technical and becomes legal: whose property is it. That question is decided by insolvency law and by the terms of service you agreed to, not by the account screen.

Mt. Gox: twelve years and still unfinished

Mt. Gox filed for bankruptcy protection in Tokyo in February 2014, disclosing that roughly 850,000 bitcoin belonging to customers and to the company were missing. About 200,000 were later recovered from an old wallet. In 2018 the case was converted from straight bankruptcy to civil rehabilitation, which allowed creditors to be repaid in Bitcoin and Bitcoin Cash rather than at the roughly $483 per coin the bankruptcy process would have used. Repayments through designated exchanges, Kraken among them, began in mid-2024 (sources: contemporaneous reporting of the 2014 filing; CNBC, July 5, 2024).

The lesson is duration. Even where assets are eventually recovered, creditors waited more than a decade, with no access and no certainty in the meantime.

FTX: repaid in dollars at the worst possible price

FTX Trading filed for Chapter 11 in the US Bankruptcy Court for the District of Delaware on November 11, 2022. The plan of reorganization was confirmed in October 2024 and took effect on January 3, 2025, with distributions beginning within 60 days. Customers with allowed claims recovered roughly 119% of the value of their accounts (source: court records, case 22-11068; FTX plan announcements, 2024 and 2025).

That figure sounds generous until you notice what it is a percentage of. Claims were fixed in dollars at the petition date in November 2022, near the bottom of that market cycle. Someone who held bitcoin on FTX did not get bitcoin back. They got dollars calculated from a November 2022 price, more than two years later. The upside in the intervening period went to the estate, not to them.

Celsius: the terms of service decided ownership

Celsius Network filed for Chapter 11 in July 2022. On January 4, 2023, Judge Martin Glenn of the US Bankruptcy Court for the Southern District of New York ruled that under the plain language of Celsius's terms of use, customers had transferred ownership of assets deposited into its "Earn" program, making those assets property of the bankruptcy estate. Around 600,000 Earn accounts held roughly $4.2 billion as of July 10, 2022, and those customers became unsecured creditors (source: US Bankruptcy Court, Southern District of New York, January 4, 2023 decision).

Unsecured creditors sit behind secured lenders and administrative costs. The document that put them there was the one nobody reads, and it was available before the failure.

What insurance does and does not cover

Exchange marketing often mentions insurance anyway. Where a policy exists, it is typically a crime or custody policy held by the exchange covering specific loss events such as a hot wallet breach, subject to a cap far below total customer balances. It is the exchange's policy, not yours, and it does not respond to insolvency. Read what the coverage names before treating it as a backstop.

The warning signs that showed up every time

Other patterns worth taking seriously: a fixed high yield advertised on ordinary deposits, which has to be funded by lending your assets to someone; heavy exposure to a token the exchange or its affiliates issued; blurred lines between the exchange and an affiliated trading firm; a proof of reserves program that quietly stops publishing; and executives responding to specific balance-sheet questions with reassurance rather than numbers.

None of these prove anything on their own. Several at once, alongside withdrawal problems, is a pattern that has preceded every collapse listed above.

What to actually do

Move long-term holdings off the exchange. self custody means holding the keys yourself, which removes the counterparty entirely. The trade is that recovery becomes your responsibility, so the seed phrase handling matters as much as the transfer. The step-by-step process is in Move crypto off exchange.

Use a hardware wallet for meaningful amounts. A hardware wallet keeps signing keys on a device that never exposes them to an internet-connected computer, which addresses the main risk you take on when you leave an exchange.

Keep only working balances on any venue. Whatever you are actively trading, plus a small buffer. This is not about picking a safe exchange; it is about limiting what any single failure can reach.

Spread across more than one exchange if you must hold on-venue. Two accounts do not halve the risk of a failure, but they halve what one failure costs you, and they leave you with a working route to sell when one venue freezes.

Check what you can check. Proof of reserves, licensing, and incident history are partial signals and worth reading, with the limits set out in Proof of reserves. Our scoring approach for these factors is on Methodology, and the venues we track are listed on Exchanges.

Read the custody language. Look for whether the terms say the exchange holds assets for you or acquires them, whether customer assets are segregated, and what happens on insolvency. Celsius turned on exactly this wording.

Frequently Asked Questions

If an exchange goes bankrupt, do I get my coins back?

Usually not the coins. If customer assets are found to belong to the estate, you become an unsecured creditor and receive whatever percentage the estate pays, often in dollars valued at the filing date and often years later.

Does a licence or registration protect my funds?

It raises the standard an exchange is held to and may impose segregation and reporting duties, which matters. It is not a guarantee of recovery, and the protections vary widely between jurisdictions.

How much should I keep on an exchange?

Only what you need on the platform to do what you are currently doing. There is no threshold that is universally safe, and the question to ask is how much you could afford to have frozen for several years.

Are decentralized exchanges safer?

They remove the custodian, since you keep your keys throughout, and they replace that risk with smart contract risk, and with the full responsibility for your own key security. Different exposure, not less of it.

What should I do if withdrawals are paused right now?

Stop adding funds, document your balances and any communications, and withdraw through any route that still functions, including selling to a different asset or network that is not suspended. Waiting for an announcement has historically been the expensive choice.