Federal security officials disrupted China-sponsored hackers breaching American defenses, enabling access to people’s cameras and other internet-connected devices, FBI Director Christopher Wray said Wednesday.

"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.

The FBI has disrupted a group of Chinese hackers who were working at the direction of the Chinese government to infiltrate critical infrastructure in the U.S. and other countries and to spy on and steal data from universities,