"The government’s malware disabling commands, which interacted with the malware’s native functionality, were extensively tested prior to the operation," according to the DOJ.

U.S. law enforcement has disrupted a second major Chinese hacking group nicknamed "Flax Typhoon" and wrested thousands of compromised devices from its grasp, FBI Director Christopher Wray said on Wednesday.

U.S. authorities have thwarted another China-backed botnet, freeing hundreds of thousands of infected devices in the process, FBI Director Christopher Wray said.

FBI Director Christopher Wray said the agency's Cyber Action Team disrupted a second Chinese hacking group that had infiltrated thousands of devices.

The FBI, NSA and other U.S. government agencies detailed a Chinese-government operation that used 260,000 of internet-connected devices to launch cyberattacks.

The group was run by a Chinese company that ‘collected intelligence and performed reconnaissance for Chinese government security agencies’.