Fortunes in crypto that are lost forever
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Lost crypto fortunes: the billions nobody can reach

Crypto's grim party trick — money that definitely exists, is worth a fortune, and that nobody can get to. The most expensive 'oops' moments in Bitcoin history.
Written & fact-checked by the StupidGames editorial team Last updated: June 2026 About the team
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Most financial disasters end with someone, somewhere, getting the money. A regulator confiscates it. A bankruptcy court redistributes it. A fraudster eventually spends it. Crypto has invented an entirely new category: fortunes that are confirmed real, publicly visible on the blockchain, and mathematically unreachable. No one has them. No one can get them. They just sit there, accumulating in value, mocking everyone. Here are the six most spectacular examples.

1. The hard drive in the landfill (James Howells)

In 2013, James Howells, an IT worker from Newport, Wales, was having a clear-out and accidentally threw away a hard drive. Not a tragedy in itself — except this particular hard drive contained the private keys to around 8,000 Bitcoin. At Bitcoin's peak prices, that's a sum well north of $500 million. The drive ended up buried under years of waste at a local landfill.

Howells has spent years presenting increasingly elaborate proposals to the council for permission to dig it up — at one point proposing a full excavation operation with professional archaeologists, sorting equipment, and a deal that would give the council a share of the recovered funds. The council has refused every time, citing environmental regulations and the terms of the site's operating licence. The drive remains underground. The Bitcoin remains on it. Newport, apparently, would rather not.

2. The IronKey with ten guesses (Stefan Thomas)

Stefan Thomas, a German-born programmer, was given around 7,002 Bitcoin as payment for making an animated video explaining how Bitcoin works — back when that was the sort of thing you could earn 7,002 Bitcoin for. He stored the private keys on an IronKey encrypted hard drive and then forgot the password.

The IronKey is not a forgiving device. It permanently encrypts itself after a set number of wrong password attempts, destroying the data inside. Thomas reportedly has just two guesses left before a nine-figure fortune is gone forever. He has stated publicly that he has made peace with the situation. He is either telling the truth or very good at lying about how he feels.

Why you can't just "hack" a forgotten wallet

Bitcoin private keys are 256-bit numbers. Brute-forcing one — trying every possible combination — would take longer than the current age of the universe, even with every computer on Earth working simultaneously. The security that makes Bitcoin trustless is exactly the same security that makes a forgotten password a permanent, irreversible loss.

3. The million coins that never moved (Satoshi Nakamoto)

Bitcoin's pseudonymous creator, known only as Satoshi Nakamoto, mined heavily in the early days of the network. Blockchain analysts believe Satoshi is sitting on around 1 million Bitcoin — a stash worth tens of billions of dollars at almost any price Bitcoin has traded in recent years. None of it has ever moved. Not one satoshi.

There are three popular theories: Satoshi lost the keys and the coins are gone; Satoshi is deliberately leaving them untouched as a statement; or Satoshi died. Any movement of those coins would be one of the most watched events in financial history — wallets associated with early Satoshi mining are monitored around the clock. So far: nothing. Just a mountain of unreachable money, sitting perfectly still.

4. Around 20% of all Bitcoin may already be gone

The Howells drive and the Thomas IronKey are the famous cases. The boring, enormous story underneath them is that millions of people lost their Bitcoin in the early years, in the exact same ways — discarded drives, forgotten passwords, dead computers, lost paper wallets, and the occasional house fire. Blockchain analytics firm Chainalysis has estimated that around 20% of all Bitcoin in circulation is effectively lost forever, sitting in wallets that haven't moved in years and whose owners are presumed to no longer have access.

That's potentially millions of coins. At peak prices, it represents hundreds of billions of dollars. It is also, by definition, Bitcoin that will never re-enter circulation — which means every lost coin makes everyone else's coins fractionally more scarce. The accidentally-lost fortunes are, in a sense, an involuntary gift to every other holder.

5. The exchange that lost 850,000 Bitcoin (Mt. Gox)

For several years, the Tokyo-based exchange Mt. Gox handled the majority of all global Bitcoin trading. In February 2014, it collapsed. The reason: around 850,000 Bitcoin had gone missing — a combination of a long-running hack and, it later emerged, internal mismanagement that had gone undetected for years.

At the prices Bitcoin reached in subsequent bull markets, the missing coins were worth tens of billions of dollars. Some Bitcoin was eventually recovered — around 200,000 coins turned up in an old wallet — and after nearly a decade of bankruptcy proceedings, creditors began receiving payouts in 2024. But a large portion of the original 850,000 remains unaccounted for, and the case stands as the largest exchange failure in crypto history, a record it held for years.

6. The exchange whose founder died with the keys (QuadrigaCX)

In 2018, Gerald Cotten, the founder and CEO of QuadrigaCX — at the time Canada's largest cryptocurrency exchange — died suddenly while travelling in India, reportedly from complications related to Crohn's disease. He was 30. He was also, reportedly, the only person who knew the passwords to the cold wallets holding around $190 million in customer funds.

The exchange collapsed. Customers couldn't withdraw their money. An investigation by the Ontario Securities Commission later found that much of the customer funds had already been misappropriated well before Cotten's death — suggesting the missing-keys story may have been, at least in part, a cover for what was effectively a fraud. Some customers have remained sceptical about the death itself. The full truth remains unclear. The customer money, however, is clearly gone.

The uncomfortable punchline

What links every story on this list is the same feature that makes Bitcoin interesting in the first place: there is no one to call. No central authority, no insurance scheme, no regulator with a recovery fund. The immutability and trustlessness that make crypto appealing as a financial system are exactly what make these losses permanent. The same key that unlocks the vault also becomes, when forgotten or destroyed, the world's most expensive paperweight.

If you'd like to practice making catastrophically bad financial decisions in a consequence-free environment, the Pump or Dump simulator is standing by.

Sources & further reading

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