The U.S. Treasury Department has sanctioned a Chinese technology firm it says played a role in ransomware operations affecting critical infrastructure around the world. The move adds pressure on cyber actors and their support networks as governments try to blunt attacks that can disrupt hospitals, utilities, and other essential services.

According to the Treasury, the company was involved in helping ransomware groups carry out operations tied to major criminal campaigns. Sanctions are designed to freeze any U.S.-linked assets and bar Americans from doing business with the designated entity. The action also signals a broader effort by Washington to target the infrastructure behind cybercrime, not just the attackers themselves.

Ransomware has become one of the most damaging forms of cyber extortion, with victims often forced to shut down systems, pay ransoms, or absorb costly recovery efforts. Officials have increasingly argued that companies enabling these attacks should face the same scrutiny as the groups launching them.

The designation comes as cyber defense remains a top concern for governments and private operators, especially in sectors where outages can endanger public safety. U.S. officials say they will continue using financial penalties and other tools to disrupt networks that support large-scale digital attacks.