LONDON (AP) — After a sprawling hacking campaign exposed the communications of an unknown number of Americans, U.S. cybersecurity officials are advising people to use encryption in their ...

The encrypted messaging app Signal is receiving renewed attention after high-level members of President Donald Trump's administration inadvertently added a journalist to a group chat discussing ...

When top White House defense and national security leaders discussed plans for an attack on targets in Yemen over messaging app Signal, it raised many questions about operational security and ...

US authorities intercepted an encrypted transmission believed to originate in Iran that could signal the activation of ...