The FBI said it has disrupted a highly tailored, hard-to-detect cryptocurrency theft scheme by a North Korean hacking group that has managed to steal billions across the world in recent years.

The hackers have aggressively targeted people in the cryptocurrency and Web3 industries, as well as workers in the development and maintenance of open-source software, the FBI said in a written statement. Web3, in general, describes internet applications that interact with a blockchain — a digital ledger that stores data.

On Thursday, the FBI and Department of Justice announced the disruption of a cloud-based infrastructure used by the North Korean hackers, resulting in the seizure of more than 900 webcam videos of victims working in the…