Cointelegraph has compiled 10 crypto mysteries that still lack firm answers, spanning the identity of Satoshi Nakamoto, vanished exchange funds, a fugitive accused of running one of the industry’s biggest scams, and the disputed death of a DeFi builder in Puerto Rico.
The piece argues that blockchain’s reputation for transparency has never stopped the digital asset sector from producing missing people, missing coins and major events that remain unresolved years later.
1. Who is Satoshi Nakamoto?
More than 17 years after Bitcoin was created, the biggest mystery in crypto is still unresolved. The industry still does not know who Satoshi Nakamoto is, or even whether the name refers to one person.
Satoshi published the Bitcoin white paper in 2008, mined the genesis block in January 2009, took part in the network’s early development and then disappeared from public view in 2010. Since then, the list of possible identities has grown to include cryptographers, cypherpunks, British academics, early Bitcoin developers and even convicted sex offenders.
Cointelegraph says the latest serious attempt came in April 2026, when The New York Times published a lengthy investigation that identified British cryptographer Adam Back as its leading candidate. The report pointed to similarities in writing style, shared cryptographic interests, Back’s work on Hashcash cited in the Bitcoin white paper, and other circumstantial clues. Back strongly denied the claim.
Other names floated over the years include Peter Todd, Hal Finney and Jack Dorsey. Craig Wright, who has repeatedly claimed to be Bitcoin’s creator, is described as the only major Satoshi candidate formally ruled by a UK court not to be Satoshi.
The article also notes online speculation linking Jeffrey Epstein to Satoshi after newly released Epstein files showed he had ties to the early crypto industry and made a 2014 investment in Back’s Blockstream. It says there is no credible evidence for that theory.
2. Who was the Patoshi miner?
Blockchain researcher Sergio Lerner identified a pattern in Bitcoin’s earliest mined blocks in 2013 and linked it to a single miner he later called “Patoshi.”
Lerner estimated that this miner accumulated about 1.1 million BTC across 22,000 blocks. If correct, that would make the figure the largest BTC holder today, ahead of Coinbase, BlackRock and Strategy, according to the report.
Patoshi has never been conclusively proven to be Satoshi Nakamoto, but the pattern remains one of the strongest arguments tying a huge early Bitcoin stash to Bitcoin’s creator. The central question is unchanged: whether this was Satoshi using one machine, another early miner, or someone else entirely.
3. What happened to Mt. Gox’s missing Bitcoin?
When Mt. Gox collapsed in February 2014, the exchange said around 850,000 BTC had disappeared. It later found about 200,000 BTC in old-format wallets that had previously been believed empty, but the rest remains unaccounted for.
Cointelegraph says that more than 12 years later, creditors are finally recovering part of what they lost, yet the full story behind the missing Bitcoin has not been resolved. Investigators have traced some of the coins, including portions linked to Russian cybercriminals and the BTC-e exchange.
US prosecutors have also alleged that Russian nationals stole and laundered roughly 647,000 BTC from Mt. Gox. Even so, major questions remain unanswered: who took the coins, how long the theft had been underway, how much was lost to hacking as opposed to internal failures, and where the coins are now.
4. What really happened to QuadrigaCX’s missing funds?
QuadrigaCX became one of crypto’s most discussed mysteries in December 2018, when founder Gerald Cotten died suddenly in Jaipur, India. After his death, the exchange was unable to access millions of dollars in customer-deposited crypto.
At the time, many believed Cotten had taken the exchange’s private keys with him. A later investigation by the Ontario Securities Commission found that he had transferred millions of dollars in client funds to his own and his wife’s personal accounts, and had used client assets to cover his personal trading losses and expenses.
The article leaves open the core questions that have kept the case alive: whether Quadriga was a massive fraud that collapsed when its operator died, whether undiscovered wallets still exist, or whether Cotten faked his death and kept the money.
5. Where is the CryptoQueen?
Ruja Ignatova, better known as the CryptoQueen, remains one of the most infamous missing figures in the industry. The Bulgarian founder of OneCoin is accused of helping build what the FBI says was one of the world’s biggest crypto scams, defrauding victims of more than $4 billion.
In October 2017, Ignatova flew from Sofia to Athens and then disappeared. She has not been found since.
The FBI added her to its 10 Most Wanted Fugitives list in 2022 and still offers a reward of up to $5 million for information leading to her arrest and conviction. In a 2026 update, the bureau said she remains at large and described her as “well-funded” and “well-connected.”
Cointelegraph does not claim to know what happened next. It presents the lingering possibilities that have surrounded the case for years: that she may still be operating under cover, may have been killed, or may be living under a new identity after escaping with millions.
6. Will James Howells ever recover his lost Bitcoin?
James Howells, an IT worker from Wales, accidentally threw away a hard drive in 2013 that contained the keys to what later became a huge Bitcoin fortune. The case has long stood as one of crypto’s best-known cautionary tales about self-custody.
Howells says the drive ended up in a landfill and spent years trying to get it back. His proposals included excavating part of the site with specialist equipment and AI-powered sorting systems to search the waste.
Those efforts have failed. After years of legal disputes and repeated attempts to persuade Newport City Council to allow excavation, a High Court judge ruled in January 2025 that he had no realistic prospect of success.
The Bitcoin itself has not disappeared. It remains visible onchain; what is missing is access to the private keys.
7. Who was the DAO hacker?
The 2016 DAO exploit remains one of the most consequential hacks in crypto history. An attacker exploited a vulnerability in The DAO smart contract and drained more than 3.6 million ETH into a child DAO, taking more than 30% of the DAO’s funds before the attack stopped.
The attacker was never identified. The consequences were historic: the fallout split Ethereum into two chains, the main Ethereum network used today and the smaller Ethereum Classic chain.
In 2022, Laura Shin said the attacker was Austrian programmer Toby Hoenisch. He denied the allegation and has never been charged.
The article says the case still leaves open broader questions about whether code is law and whether blockchain transactions are truly immutable if a community decides the outcome cannot stand.
8. Who stole roughly $400 million from FTX?
FTX’s collapse was already one of the biggest failures in crypto. Then, within hours of the exchange filing for bankruptcy, hundreds of millions of dollars in digital assets started moving out of its wallets. About $415 million in crypto was ultimately reported stolen.
The timing immediately drew suspicion. FTX was in chaos, staff were trying to secure assets, bankruptcy proceedings were starting, and multiple groups were trying to determine who still controlled the exchange’s wallets.
Cointelegraph says the US Department of Justice later seized hundreds of millions of dollars in assets tied to FTX, and investigators traced part of the movement. Even so, the identity of the attacker remains unknown.
The article frames the unanswered possibilities this way: an outside hacker who struck at exactly the right time, someone with internal access, or a person close to the exchange who took advantage of the confusion around the collapse.
9. What really happened to Nikolai Mushegian?
Nikolai Mushegian was an early MakerDAO developer and a co-founder of Balancer. He helped build some of DeFi’s early infrastructure.
On Oct. 28, 2022, he was found dead in the waters off Condado Beach in San Juan, Puerto Rico. Local police said he had been swimming and was caught by strong ocean currents.
That explanation did not end the questions. Hours before his death, Mushegian posted messages on Twitter warning that he would be assassinated. In the posts, he claimed the CIA, Mossad and “pedo elite” were involved in a sex-trafficking operation in the area and were planning to frame and kill him.
The Puerto Rico Justice Department investigated his death for almost a year and found no criminal involvement. Still, the online messages he left behind have kept doubts alive about what happened in his final hours.
10. Why did someone deliberately burn 107 BTC?
One of the strangest cases on the list concerns the deliberate destruction of 107 BTC in May 2026. The coins, worth about $8.5 million at the time, were sent to a Bitcoin address that made them permanently unspendable.
According to the report, the BTC had been acquired around 2014, when Bitcoin traded below $600. That made the move especially difficult to explain, because the holder had kept the coins through about a 12,000% increase in value before destroying them.
Cointelegraph adds another detail that made the episode harder to understand. In March, one of the five wallets involved sent about 20 BTC, worth roughly $1 million, to what appeared to be a large crypto custodian. Almost the same amount came back three weeks later, before the 107 BTC was burned.
The article offers no answer, only the conclusion that the event belongs on the list of major crypto mysteries that still have not been solved.