Chinese hackers stole network diagrams, credentials, and personnel data in a breach that poses a threat to critical infrastructure nationwide.

Chinese hackers infiltrated the network of at least one state's National Guard and remained in its systems for over nine months, a Department of Homeland Security memo says. The findings, as first reported by NBC News,

The Chinese state-sponsored hacking group known as Salt Typhoon breached and remained undetected in a U.S. Army National Guard network for nine months in 2024, stealing network configuration files and administrator credentials that could be used to compromise other government networks.