End-to-end encrypted messaging app Signal says attackers accessed the phone numbers and SMS verification codes for almost 2,000 users as part of the breach at communications giant Twilio last week.

National Security Advisor Mike Waltz and Defense Secretary Pete Hegseth/ Andrew Harnik/Getty Images (WASHINGTON) — The Trump administration is under scrutiny after The Atlantic editor Jeffrey Goldberg ...

A key question that remains is whether any classified information was posted in the chat, something the administration denies. Still, Democrats and former national security officials claim that ...

The Trump administration is still grappling with the revelation from Monday that several senior officials discussed plans to strike Houthi rebels in Yemen in a Signal chat that inadvertently included ...

A key question that remains is whether any classified information was posted in the chat, something the administration denies. Still, Democrats and former national security officials claim that ...