December 8, 2023

The U.S. Treasury Department alleged that North Korean hacking group Lazarus is tied to a more than $600 million theft of cryptocurrency from the Axie Infinity-linked Ronin bridge.

Ronin Bridge Hack, $625 Million Lost in the Biggest DeFi Hack to Date
Source: Playtoearn

The Treasury Department added an Ethereum address to its sanctions list on Thursday. Wallet profiler Nansen had labeled the sanctioned address as a “Ronin Bridge Exploiter” when checked by CoinDesk Thursday. It held 148,000 ETH at publication time. 

Crypto analytics firm Chainalysis tweeted that the address “was involved in the Ronin hack.” Tracing firm Elliptic estimated that 14% of the stolen funds had already been laundered by Thursday.

Ronin Network said in a blog post that the FBI had linked Lazarus with the validator breach and that the Treasury Department sanctioned the funds.

“We are still in the process of adding additional security measures before redeploying the Ronin Bridge to mitigate future risk,” the blog said, targeting deployment before month’s end and promising a full post-mortem at a later date.

Source: Katana

Thursday’s action is the first time the Treasury’s sanctions office has blacklisted an alleged Lazarus-held crypto wallet, a source in the tracing industry told CoinDesk.

A Treasury Department spokesperson said the department had worked with the FBI to investigate the Lazarus Group and Advance Persistent Threat 38 (another North Korean entity believed to use malicious programming to steal funds).

“Identification of the wallet will make clear to other VC actors, that by transacting with it, they risk exposure to US sanctions. This demonstrates Treasury’s commitment to using all available authorities to disrupt malicious cyber actors and block ill-gotten criminal proceeds,” the spokesperson said. “There may be mandatory secondary sanctions requirements on persons who knowingly, directly or indirectly, engage in money laundering, the counterfeiting of goods or currency, bulk cash smuggling, or narcotics trafficking that supports the Government of North Korea or any senior official or person acting for or on behalf of that Government.”

The spokesperson said anti-money laundering and countering the financing of terrorists were “critical” chokepoints in preventing money laundering with stolen funds and called on the crypto industry to implement these types of safeguards.

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