Signal says its systems are secure but it is taking reports of targeted attempts to hack some officials "very seriously".

The Russian state-sponsored APT28 threat group is using a custom variant of the open-source Covenant post-exploitation framework for long-term espionage operations.

The nonprofit that oversees Wikipedia briefly enforced a 'read-only' mode on Thursday morning as users spotted code designed to delete articles and place Russian text in the edit summary.

The Cybersecurity and Infrastructure Security Agency has ordered federal agencies to patch three critical iOS vulnerabilities that were exploited over a 10-month span in hacking campaigns conducted by ...