US Sanctions Network of Exploit Brokers That Stole US Government Cyber Tools

The U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) on February 24, 2026, designated Russian national Sergey Sergeyevich Zelenyuk and his St. Petersburg-based company Matrix LLC operating publicly as Operation Zero, along with five associated individuals and entities, for acquiring and distributing cyber tools directly harmful to U.S. national security. This marks […]

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