The Harmony Bridge hack in 2022 was the result of security holes in Harmony’s Horizon Ethereum bridge that allowed the cyber attackers to swipe a number of assets stored in the bridge via 11 transactions.
The FBI also outlined that the North Korean hackers started shifting around $60 million worth of the stolen funds earlier this month via the Ethereum-based privacy protocol RAILGUN. Blockchain sleuth ZachXBT previously highlighted such via Twitter on Jan. 16.
Notably, Binance detected the hackers were trying to launder the funds through the Huobi crypto exchange, and then promptly assisted it in freezing and recovering the digital assets deposited by the hackers, according to CEO Changpeng Zhao.
In its statement, the FBI said its cyber and virtual assets units, as well as the U.S. Attorney's Office and the U.S. Justice Department's crypto unit, have continued “to identify and disrupt North Korea’s theft and laundering of virtual currency, which is used to support North Korea’s ballistic missile and Weapons of Mass Destruction programs."