The U.S. Department of the Treasury has sanctioned a Russia-based cyber “exploit broker” and its affiliates in a high-profile national security action targeting the theft and sale of proprietary U.S. government cyber tools, officials announced Tuesday. Operation Zero blacklisted by…

The U.S. Treasury announced it was imposing sanctions against a Russian broker of zero-day exploits, its founder and two affiliates, citing a threat to U.S. national security. Another affiliated zero-day broker in the United Arab Emirates was also sanctioned.