The U.S. Department of Justice has filed a civil forfeiture action for more than $5 million in Bitcoin stolen in attacks that took place between late 2022 and the spring of 2023. It was reported that the attackers gained control of victims’ phone numbers, redirected SMS verification codes to their own devices, and thereby gained access to investors’ wallets.
Bitcoin Stolen Through SIM Swap Attacks
In recent years, SIM swap attacks have been on the rise in the United States, causing millions of dollars in losses. In this method, attackers transfer victims’ phone numbers to SIM cards under their control, disabling existing security mechanisms. Once the SMS verification codes fall into the hands of criminals, access to crypto wallets becomes easy.
According to the Justice Department’s statement, between late 2022 and the spring of 2023, five different investors were targeted through this method. The attackers transferred more than $5 million worth of Bitcoin from the victims’ accounts to their own addresses in a short period of time.
Experts emphasize that SIM swap attacks pose a serious threat not only to Bitcoin but also to other cryptocurrencies. They warn that SMS-based two-factor authentication is not secure and remind users to switch to app-based authentication or hardware security keys whenever possible.
Attempts to Conceal Through Crypto Transfers
According to case files, the attackers did not use the stolen Bitcoin directly but first dispersed it across multiple crypto wallets. This method is a commonly used tactic to blur the origin of funds and make them harder to trace.
Authorities discovered that the digital assets circulated through different addresses for a time and were then consolidated again into a single wallet. During this process, so-called “circular transfers” were also used. In these transfers, the same funds are moved repeatedly between the same or linked addresses, complicating the transaction history.
Crypto experts note that while such methods are often used to “erase tracks,” the transparent structure of the Bitcoin blockchain prevents transactions from being completely concealed. Since every single movement is permanently recorded, experienced investigators can eventually untangle the links behind complex chains.
Bitcoin’s Trail Led to Stake.com
According to the Justice Department’s announcement, the millions of dollars’ worth of Bitcoin ended up at Stake.com, a world-famous online betting platform, after a long chain of transfers. This platform is known internationally and stands out for its high transaction volumes.
Investigators state that moving the funds here was no coincidence. Online betting platforms can sometimes be used for laundering cryptocurrencies, as their fast transaction flows and large user bases make it easier to hide illicit transfers. Particularly when large amounts of Bitcoin are mixed in with regular user activity, detection becomes far more difficult.
The Department of Justice underlined that this finding shows the incident was not just a cyberattack but also an organized money laundering attempt. Experts note that similar methods have been seen in other countries as well, highlighting the growing need for stronger regulation in the crypto industry.
Blockchain Transparency Exposed the Path of Bitcoin
Although the attackers tried to hide the stolen Bitcoin by dispersing it across different wallets and using circular transfers, they failed against the transparency of the blockchain. Because every transaction is permanently recorded, the flow of funds could be tracked step by step.
U.S. officials were thus able to determine which addresses the millions of dollars in digital assets passed through and where they eventually ended up. The public ledger nature of the Bitcoin blockchain provides a powerful monitoring tool for both individual users and government agencies.
According to experts, this case is a striking example that cryptocurrencies are not completely anonymous. Even though Bitcoin transactions cannot be reversed, the fact that every movement is traceable makes it possible to pursue criminal proceeds.
DOJ’s Forfeiture Action for Bitcoin
The U.S. Department of Justice has filed a civil forfeiture action for more than $5 million in stolen Bitcoin. This step is seen as significant both for recovering victims’ losses and for preventing the use of cryptocurrencies in illegal activities.
Officials stress that with this case, not only are individual investors being protected but the overall security of the crypto ecosystem is being reinforced. The success of the Bitcoin forfeiture process could serve as a deterrent against similar fraud attempts.
Experts note that this incident has reignited debates about security in the crypto markets. Users are advised to abandon SMS-based verification in favor of more secure authentication methods.
