Clifton Collins, a convicted Irish cannabis grower and dealer from Dublin previously a security guard and beekeeper, bought around 6,000 BTC between 2011 and 2012 using proceeds from his operations. At the time, Bitcoin traded for just a few dollars each, so his total investment was roughly $30,000.
He split the holdings across 12 wallets about 500 BTC each for basic operational security. In 2017, he was arrested and later sentenced to five years in prison for running large-scale cannabis cultivation sites across multiple counties.
During the investigation or aftermath, his private keys—printed on a sheet of paper and hidden inside a fishing rod case at a rented property—were lost when the landlord cleared out the house and discarded the belongings reportedly to a landfill.
The keys were presumed destroyed or irretrievable, and the wallets went cold. A High Court order later confiscated the assets as proceeds of crime, but access was believed impossible.
On March 24, 2026, on-chain activity showed one of the wallets labeled Clifton Collins: Lost Keys by Arkham Intelligence suddenly activate after 10 years of inactivity. It transferred the full 500 BTC to an intermediate address, which then split the funds across multiple addresses, with a significant portion ($13.5M worth) landing in Coinbase Prime.
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Ireland’s Criminal Assets Bureau (CAB), working with Europol’s European Cybercrime Centre, publicly confirmed they gained access to and seized the wallet containing approximately €30 million in cryptocurrency matching the 500 BTC figure. They moved the funds into custody via Coinbase for safekeeping/liquidation as part of asset recovery.
The remaining ~5,500 BTC; worth hundreds of millions across the other 11 wallets remain untouched and dormant for now. If authorities crack the rest using similar methods, it could become one of the largest single crypto seizures in Ireland’s history. This wasn’t Collins suddenly accessing his own coins; he’s long been in prison, and the move aligns with law enforcement action.
It highlights how “lost” or “burned” keys aren’t always permanently gone—advanced forensics, brute-force attempts, or other techniques aided by Europol can sometimes recover access years later, especially with poor key management (paper backups in physical hiding spots).
Bitcoin’s cryptography itself wasn’t broken; the vulnerability was in how the keys were stored and secured. Early criminals who got in during 2011-2012 often turned tiny drug profits into life-changing or, in this case, government-payday fortunes due to Bitcoin’s appreciation.
Stories like this pop up occasionally with old seized or lost wallets. It’s a reminder of Bitcoin’s permanence on the blockchain—transactions and ownership labels don’t forget, even after a decade. The full 6,000 BTC stash would be worth well over $400 million today. Authorities are likely still working on the rest.
The Irish Criminal Assets Bureau (CAB), working with Europol’s European Cybercrime Centre, gained access to the 500 BTC wallet on or around March 24, 2026. They then moved the funds as proceeds of crime through intermediate addresses before depositing a large portion into Coinbase Prime for custody and eventual liquidation.
CAB and Europol have not publicly disclosed the exact technical method used to unlock the wallet. The official Garda statement emphasizes that Europol provided: Operational meetings at its headquarters in The Hague.
Highly complex technical expertise and decryption resources that were “vital to the success of the operation. This is the first time authorities accessed any of the 12 wallets out of the original ~6,000 BTC total. The remaining ~5,500 BTC wallets are still dormant, though officials appear optimistic that the same approach could work on the others.
Bitcoin’s core cryptography remains unbroken—no one is brute-forcing a 256-bit ECDSA private key; that would require more energy than the sun produces. Instead, the vulnerability was almost certainly in how Collins managed his keys, not in Bitcoin itself. Common theories based on reporting include: Weak password on an encrypted wallet file or backup
Collins may have stored the private keys in an encrypted digital container protected by a simple or guessable password. Law enforcement used specialized decryption tools and significant computing power to brute-force or crack the password. Europol’s reference to “decryption resources” strongly supports this scenario.
Authorities had already seized and forfeited other assets from Collins including some BTC he still had access to, so they likely had digital forensics from his devices going back years. The assets were court-ordered confiscated around 2019–2020, but without keys, they sat untouched.