What happens if a crypto platform fails?

Counterparty risk: the risk that comes with the middleman

When you keep crypto with a CustodianCustodianA company that holds crypto and the keys to it on behalf of customers, such as a licensed crypto exchange., you are trusting the company with it. The risk that the company fails to keep its side of the deal is called counterparty riskCounterparty riskThe risk that whoever you deal with, or trust with your assets, fails to keep their side of the deal, for example because of bankruptcy or fraud.. It has nothing to do with the price of the crypto. Bitcoin can keep its value while the company holding it goes under.

Think of a safe deposit box. What is in the box is yours, but you need the bank to get to it. If the bank closes its doors, it hardly matters what is in the box until someone opens them again, and then everything depends on it being clear who owns what.

Bank deposits are insured, crypto isn't

If an Icelandic bank fails, deposits are covered up to the equivalent of EUR 100,000 per depositor, under Act No. 98/1999. That is called deposit insuranceDeposit insuranceProtection for bank deposits if a bank fails, in Iceland up to the equivalent of EUR 100,000 per person per bank. It doesn't cover crypto., and every EEA country has a similar scheme.

Crypto has no such protection. Under MiCA, crypto-asset service providers even have to tell their clients specifically that crypto-assetsCrypto-assetThe legal term for cryptocurrencies and tokens, meaning a digital representation of value or rights that can be transferred and stored on a blockchain. aren't covered this way. Protection for crypto owners rests on something else: that the assets are there, and that it is clear they belong to their owners.

Owner or creditor? What decides the outcome

When a company goes bankrupt, everything depends on whether what you held with it was your property or a claim on the company.

• If the crypto is your property and is held separately from the company's assets, it shouldn't become part of the bankruptcy estate. You can demand that it be handed over to you.
• If the crypto is a claim on the company, you are an ordinary unsecured creditor. The assets then go into the estate, and you are paid only part of what you are owed, if anything, once the estate is wound up.

Which applies depends on the law, the terms of use and how the company actually handled the assets. That is why segregation of client assetsSegregation of client assetsWhen clients' assets are kept separate from a company's own, so its creditors can't claim them if it goes bankrupt. is the most important protection crypto owners have.

Three cases from history

Mt. Gox, 2014

The Japanese exchange Mt. Gox was the world's largest when it collapsed in February 2014. About 850,000 bitcoin were reported missing, although almost 200,000 were later found in an old wallet. Repayments to customers didn't begin until July 2024, more than ten years after the collapse. In October 2026 the final deadline was extended to 31 October 2027, because many creditors hadn't completed the process.

Celsius, 2022

The crypto lender Celsius offered high returns on crypto that customers deposited in so-called Earn accounts. On 12 June 2022 it froze all withdrawals, and a month later it filed for bankruptcy in the United States. In January 2023 a judge ruled that customers had transferred ownership of their crypto to Celsius in the terms of use. The assets in about 600,000 Earn accounts, worth about 4.2 billion dollars, therefore counted as property of the estate, and their owners became unsecured creditors.

FTX, 2022

The FTX exchange went bankrupt on 11 November 2022, after it emerged that clients' assets had been mixed with those of a related company and used for its own purposes. The first repayments arrived in February 2025, and most customers have since received more than 100% of their claims.

The claims were valued in US dollars at bankruptcy-day prices, though, when one bitcoin was valued at 16,871 dollars. At the start of November 2026, bitcoin cost about 78,000 dollars. Anyone who held bitcoin at FTX therefore got back only about a fifth of what it had become worth.

The lesson is the same in every case. What mattered wasn't the price of the crypto, but whether it was actually there and who it belonged to.

What does MiCA require?

MiCAMiCAThe EU regulation on markets in crypto-assets, in force in Iceland since 1 January 2026, which sets the same rules for crypto services across the EEA. has applied in Iceland since 1 January 2026, and since 1 July 2026 only providers licensed under it may offer crypto-asset services here. Three rules matter most if things go wrong:

• Clients' ownership rights must be protected. The provider must make arrangements to safeguard clients' ownership rights, especially if it becomes insolvent, and may not use their crypto for its own account (Article 70).
• The assets must be kept separate. A custodian must keep clients' crypto apart from its own holdings, legally and on the blockchain, so its creditors have no claim on it (Article 75(7)).
• Liability for losses. A custodian is liable if crypto is lost through an incident attributable to it, capped at the market value of the crypto when the loss occurred (Article 75(8)).

These are exactly the rules that failed at FTX and Celsius. They reduce the risk but don't remove it. They are covered in more detail in Custodial or self-custody: who holds your crypto?

Proof of reserves

After FTX collapsed, many exchanges started publishing a proof of reservesProof of reservesA method a crypto platform uses to show that it holds the crypto its customers have deposited. It shows the position on a single day., which is meant to show that they hold the crypto their customers have deposited. It is useful but limited. It shows the position on a single day, it doesn't show all of the company's debts, and it isn't an audit. So it can't replace rules on segregation and supervision.

How it works at Myntkaup

Myntkaup ehf. holds a licence as a crypto-asset service provider from the Central Bank of Iceland. Client assets are legally separate from the company's own assets and protected from creditors in the unlikely event of insolvency. They are never lent out or used for the company's own investments. A significant part of them is held by regulated sub-custodians licensed in the EU, Coinbase in Luxembourg and Kraken in Ireland. Read more on the Security and licence page.

What can you do?

• Choose a licensed provider. Look it up in the Central Bank's or ESMA's register, as described in How to check if a crypto provider is licensed.
• Read the terms when returns are on offer. If you earn interest or rewards on crypto, it is usually lent out or used in some other way. It might then not count as yours if things go wrong, as Celsius customers found out.
• Be wary of promises of high, safe returns. High returns come with high risk.
• Keep your own records. Save statements of your transactions and balances. If you ever need to file a claim, it matters.
• Consider spreading your holdings. Some people use more than one provider, or keep part in Self-custodySelf-custodyHolding the private keys to your crypto in your own wallet, so nobody else controls it but all the responsibility for the keys is yours.. Self-custody removes the counterparty risk, but the responsibility for the keys becomes yours.

Closing thoughts

A crypto platform going bankrupt doesn't have to mean your crypto is lost. At a provider licensed under MiCA, client assets must be kept separate and returned to their owners. History shows, though, that what decides the outcome is whether the rules were actually followed, not what the company promised.

Choose a licensed provider, find out whether your crypto is lent out, and remember that self-custody is always an option.