According to Pidun Alert monitoring, the North Korean hacker group Lazarus Group has actively laundered at least $4 million worth of ETH from Harmony’s Horizon Bridge vulnerability through the Peel Chain layering process in the past two days. It is reported that stripping chain refers to a technology that launders large amounts of cryptocurrency through a lengthy series of small transactions. According to previous news on January 4, the FBI confirmed that Lazarus Group and APT38 were behind the Harmony cross-chain bridge attack in June last year. They stole $100 million worth of virtual currency and laundered it through the RAILGUN privacy protocol.