US Sanctions Russian Exploit Broker Over Stolen US Cyber Tools

The US Treasury targets Sergey Zelenyuk and his firm Operation Zero for the illegal trade of stolen government cyber tools following the sentencing of Peter Williams.

The United States government has launched a crackdown on a global network accused of stealing and selling sensitive cyber tools used for national security. In a move announced on Tuesday, February 24^th, the Department of the Treasury placed sanctions on Sergey Sergeyevich Zelenyuk and his Russian firm, Matrix LLC, better known in the industry as Operation Zero.

The Treasury Department’s press release identifies this group as an “exploit broker.” To put it simply, an exploit is a specific method or piece of code that takes advantage of a flaw in a computer program, allowing a user to gain secret access to a device, steal data, or take over a system entirely.

Investigation revealed that Zelenyuk has been running this operation since 2021 ...