A Miami IT specialist relied on with the digital keys to his employer’s Bitcoin stash allegedly helped himself to $1.9 million value of crypto, then spent five years hoping no person would glimpse. He nearly got away with it.
Nahum Reynaldo Castro, 40, used to be arrested on Can also 27, 2026, and now faces charges of big theft and money laundering exceeding $100,000. His bail used to be speak at $50,000, which, for the mathematics-inclined, is roughly 2.6% of what he’s accused of stealing.
The within job that stayed hidden for five years
The alleged theft traces attend to 2020, however the epic begins earlier. Castro had labored for the victim since 2013, constructing the extra or much less belief that includes with regards to a decade of employment. The victim first bought Bitcoin in December 2017, in some unspecified time in the future of that era’s wild bull chase, and saved the holdings on a hardware wallet.
By January 2018, that wallet held better than $217,000 in Bitcoin. The victim apparently took safety significantly ample to make utilize of a hardware wallet and attend it in a receive. But there used to be one crucial vulnerability: the seed phrase, the grasp key to the total wallet, used to be identified to very finest two americans. The victim and Castro.
Investigators assert Castro used that knowledge to empty the wallet in some unspecified time in the future in 2020. The victim didn’t stare the funds were long past till July 2025, when the wallet used to be checked in some unspecified time in the future of a creep. Five years of cheerful ignorance, ended by a switch of address.
Following the money during the blockchain
Investigators traced the stolen Bitcoin through a network of intermediary wallets, a conventional laundering methodology the build funds are bounced between addresses to obscure their foundation. The funds reportedly moved through cryptocurrency exchanges, including Bitstamp, and at last into mature financial institutions.
Bank details became a crucial share of the puzzle. Investigators stumbled on a correlation between deposits into Castro’s financial institution accounts and withdrawals from the compromised Bitcoin wallet. The timing patterns effectively created a paper lunge connecting the on-chain task to Castro’s off-chain funds.
Castro has no longer entered a formal plea as of his bond listening to. The charges he faces lift well-known penal complex time if convicted, given the greenback quantities eager with both the theft and laundering allegations.
A case glimpse in every part that could maybe creep substandard
The $217,000 within the wallet as of January 2018 had apparently grown to roughly $1.9 million by the time of the alleged theft in 2020, reflecting Bitcoin’s immense ticket appreciation in some unspecified time in the future of that duration.
The five-yr hole between the alleged theft and its discovery moreover highlights a teach weird to crypto: not like a checking memoir that sends monthly statements, a hardware wallet sitting in a receive doesn’t exactly ship push notifications. Must you’re no longer actively checking your balances, that it’s doubtless you’ll no longer realize one thing is substandard till it’s a ways too gradual.
What this reach for crypto holders
This case could maybe merely soundless push traders toward multi-signature wallet setups, the build extra than one events must approve any transaction sooner than funds can creep. A multi-sig association would receive averted this entire scenario, because of Castro couldn’t receive acted on my own.
The truth that investigators were in a situation to create a case at all is de facto a little encouraging. The correlation between on-chain movements and mature financial institution details demonstrates that cryptocurrency is a ways much less nameless than criminals customarily think. Exchanges indulge in Bitstamp care for know-your-buyer details, developing identifiable touchpoints that law enforcement can subpoena.
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