The electronic case filing system used by the federal judiciary has been breached in a sweeping cyber intrusion that is believed to have exposed sensitive court data across multiple U.S. states, ...

A sweeping Chinese government hacking campaign against American telecoms firms is a “very, very serious matter” that is “still going on,” Homeland Security Secretary Alejandro Mayorkas said Thursday ...

When Syrian government accounts were hijacked in March, the breach looked chaotic. But it revealed something more troubling: a state struggling with the most basic layer of cybersecurity. When a wave ...