Goodbye Crypto: Discover the Most Painful Cases of Lost Private Keys

\ Private keys are a fundamental part of the cryptocurrency world. Behind user-friendly apps, they’re a complex cryptographic construction designed to identify rightful owners and protect funds. What average users see, though, is a series of random words (often from 12 to 24) —which they’re instructed to defend with their lives. In crypto, these words are the one and only key for accessing funds. If lost, then coins are lost, too. Forever. There’s no “I forgot my password” here. If you forget or lose your private keys, then you can say goodbye to your funds . That’s what crypto is about: independence. No one can freeze or seize your funds if you’re using a decentralized currency, but no one can help you recover them, either. So far, according to Chainalysis , up to 3.7 million bitcoins are permanently inaccessible, mostly due to the loss of private keys. And this is without counting other coins. Let’s explore some of the worst documented cases. \n Stefan Thomas — 7,002 BTC locked forever (almost) In crypto, we’re the only ones in charge of protecting our funds, so it’s quite likely that we do everything in our power to do so. The Swiss programmer Stefan Thomas, former Ripple CTO, tried to do exactly this… and it backfired. In 2011, he made a video titled “What is Bitcoin?” and it was paid in BTC for it. Around 7,002 BTC were left from that payment, and Thomas stored the coins in an IronKey hardware wallet. Those wallets have a particularity: after 10 incorrect password guesses, they delete all their content. Thomas wrote down his password on a piece of paper that he lost, and hasn’t been able to remember the correct wallet password (nor his private keys) in all these years. Eight failed attempts have passed, and he’s only two more left. As of May 2026, those 7,002 BTC are worth more than $553.1 million. He’s declared that two teams are working on deciphering the wallet password (because deciphering the private keys would take millions of years with our current technology —that's why cryptocurrencies are secure). None of them has been successful, so far. However, Unciphered, a different company, has claimed that they already cracked an IronKey. For now, Thomas declined their help, but who knows if he changes his mind later. \n James Howells — 8,000 BTC in a landfill Have you ever thought, "Hey, I won't throw this away because I'll need it someday," and in the end, you never need it? Well, you may have done the right thing. James Howells, a British IT worker, was an early Bitcoin miner. Mining on his old Dell laptop since 2009, he managed to accumulate around 8,000 BTC —$632 million as of May 2026. Fast forward to 2013, and he was cleaning up his home. He was getting rid of some old things, including an old hard drive… and he got the wrong device. This way, his hard drive with private keys and 8,000 BTC inside ended up in a Welsh landfill. Yikes. What followed was a true odyssey to try to recover it. Howells has attempted to get permission to dig through the site, proposing teams, machines, and funding plans. https://www.youtube.com/watch?v=0tMXLDVpPs8&embedable=true Local authorities have repeatedly refused, citing environmental and legal concerns. He even sued them in 2024, with no success. Currently, after 13 years, it seems impossible that the device survived. Meanwhile, Howells is working on the release of a new cryptocurrency, dubbed Ceiniog Coin . \n WIRED Experiment You need to decide what to do with 13 BTC that you can’t use… So, do you donate them to charity? Raffle them off? Give them away? Well, WIRED newspaper's response was to destroy the private keys and leave them inaccessible forever . Probably not the best decision, but anyway. In 2013, the newspaper received a small Bitcoin mining device designed by the now-defunct company Butterfly Labs. The goal was to test it and likely promote it. The little machine , "that it burns hot, and that it makes the sound of a toy hair dryer," gave them enough power to mine 13 BTC, which was around $2,000 at the time. Now, it’s over one million. In the last Bitcoin All-Time High (ATH) in 2025, it was $1.6 million. So, why did they get rid of it? Because of fair journalism. Michael Calore, a senior editor at WIRED, commented about it : "We talked about donating it to a journalism institution, or setting it aside as a scholarship. But we decided that if we gained any benefit from it at all, it would color our future coverage of bitcoin. So, we just destroyed the key, knowing full well that it could eventually be worth six or seven figures." Well. At least they knew what they were doing. We can’t assure they don’t have any regrets, though. \n QuadrigaCX — 26,350 BTC inaccessible There weren’t many regulations in place for crypto exchanges in 2018, and the extinct Canadian company QuadrigaCX was a big, bad example of it. While current crypto exchanges handle their private keys with the utmost care, in cold wallets and multisignature systems, QuadrigaCX only had Gerald Cotten, its founder, with all the stash in his pockets, basically. Back in December 2018, when he died in India without a warning, all private keys of QuadrigaCX died with him . Around 26,350 BTC became inaccessible, along with other cryptocurrencies. The BTC alone is worth around $2.1 billion at today’s prices, so the total losses are higher. Because it involved an exchange and not a common individual, this case hit thousands of users at once. It also exposed a structural weakness: centralizing key management by only one party. After an investigation into the exchange, the Ontario Securities Commission determined that it was a fraud and a Ponzi scheme. Apparently, Cotten had been misusing the funds for personal gain. Furthermore, there are numerous theories that his death was faked. Several documentaries address this. https://www.youtube.com/watch?v=vW2BPQ15OSw&t=5s&embedable=true Crypto Lost in Smoke What’s worse than losing your private keys? A lot of things may fit here, but losing your private keys and also your house, at the same time, is certainly on the list. In 2025, wildfires in Los Angeles destroyed homes across large areas. Reports describe thousands of structures damaged or reduced to ashes, with entire neighborhoods affected. Many people lost their homes, belongings, and some even loved ones. It’s highly probable that inside several of those homes, some private keys turned to ashes. At least one case was publicly shared on X (formerly Twitter). An elderly woman lost her apartment along with the private keys to her crypto savings. The value was not specified, yet it represented her life savings. The keys were stored in physical form, and the fire left nothing behind. She had no other backup. https://x.com/montyreport/status/1877102173357580680?embedable=true This case is a stark reminder that fires, floods, and other disasters don’t distinguish between cash, documents, or seed phrases. When keys exist in a single location, that location becomes a single point of failure. So… What We Can Do Now? These stories may sound extreme, yet they revolve around familiar situations: cleaning up old hardware, forgetting a password, trusting one person, skipping backups, or underestimating physical risks. A few habits can reduce those risks without adding much complexity: \ Keep your private keys offline . You don’t want to be hacked remotely, without a chance to even blink. In Obyte , you can do this by creating a simple textcoin and then deleting it from History. Create multiple backups of your seed phrase and store them in separate, secure locations . A fireproof safe or a bank deposit box can help protect against physical damage. \n Avoid storing private keys on a single device . Hardware wallets are useful, but they shouldn’t be the only place where recovery information exists. \n Use clear, secure methods to record passwords and recovery phrases . Memory alone isn’t reliable over long periods. \n Share access plans with trusted people when large amounts are involved . This can include instructions stored securely or legal arrangements that prevent a single point of failure. Crypto inheritance can be included. In Obyte, you can create multidevice accounts for multiple people and multiple devices. \n Test recovery procedures before they’re needed . Restoring a wallet from a backup confirms that the process works and that the information is correct. \n Control over crypto brings freedom, yet it also brings responsibility. These cases show what happens when that balance tips in the wrong direction. A small precaution today can prevent a sad story that ends up circulating online for years. \n \n Featured Vector Image by Genko Mono / Vecteezy \n \