ZachXBT warns of frequent use of cross chain bridges or involvement of North Korean hackers for money laundering Chain detective ZachXBT posted that whenever some cross chain bridges release data such as "record usage", it is often possible that North Korean hacker groups are laundering money through the bridge. He pointed out that most of the recent incidents are related to Bybit's stolen funds, and he has used multiple on chain jumps to confuse the flow of funds and evade address censorship, thereby exaggerating the actual usage data.