Organized crime in Ireland has found an analog solution to a digital problem. Instead of trying to obscure crypto holdings with mixers or privacy coins, gangs are simply locking hardware wallets, seed phrases, and private keys inside rented private vaults, right next to the cash, luxury watches, and fake passports.
Ireland’s Criminal Assets Bureau, the agency responsible for seizing criminal proceeds, says this storage method is becoming a go-to tactic for groups trying to keep their digital wealth out of law enforcement’s reach.
Old-school vaults, new-school assets
The strategy is deceptively simple. Crypto assets themselves live on blockchains, visible to anyone who knows where to look. But without the private keys or recovery phrases, those assets are untouchable. By stashing the physical materials needed to access wallets inside rented security boxes, criminals create a gap between what investigators can see on-chain and what they can actually seize.
CAB Chief Bureau Officer Michael Gubbins noted that criminals believe there is a layer of anonymity in using private vaults. That belief isn’t entirely wrong. Renting a vault is legal, and investigators need to establish a link between the contents and criminal proceeds before they can secure a forfeiture order. It is a higher bar than simply freezing a bank account.
Gubbins also acknowledged that the volatility of cryptocurrencies plays into their appeal for laundering operations.
A €30 million breakthrough
In March 2026, CAB successfully accessed a previously locked wallet containing 500 BTC, valued at approximately €30 million at the time. That wallet was part of a much larger haul of 6,000 BTC that had been seized back in 2019.
The operation was supported by Europol, reflecting the cross-border nature of both organized crime and crypto asset recovery.
Over the past decade, CAB has managed to sell seized crypto assets worth around €6.5 million. That figure, compared to the €30 million sitting in just one recovered wallet, suggests the bureau’s accessible holdings have historically been a fraction of what it has on the books.
Legislation on the horizon
CAB is now exploring new legislative tools designed to improve its ability to seize and freeze crypto assets. The current legal framework was built for a world where criminal wealth sat in bank accounts, real estate, and physical goods. Digital assets, particularly those secured by off-chain credentials hidden in anonymous vault boxes, don’t fit neatly into that model.
Private vault rentals themselves remain perfectly legal. The challenge for investigators is proving that the contents, whether a hardware wallet or a slip of paper with 24 words on it, are the proceeds of crime.