Defense Department guidance specifically prohibited employees from using Signal to transmit non-public information ...

Hackers continue to try to exploit a forked signal app that is used to archive sensitive messages for compliance purposes, ...

I was hoping to hear from you that you had some sense of regret over sharing what was very sensitive, timely information ...

Senators questioned ex-Trump national security adviser Michael Waltz at confirmation hearing about a Signal chat that ...

Waltz was removed from his job as national security adviser after he accidentally added a journalist to his Signal chat about an attack on Houthis.

While being intensely questioned by Senators Cory Booker (D-NJ) and Chris Coons (D-Del.), Waltz allegedly sought to downplay the scandal over leaked military information.

Mike Waltz will face questioning from lawmakers for the first time since he was ousted as national security adviser ...

WASHINGTON (Reuters) -A hacker who breached the communications service used by former Trump national security adviser Mike Waltz earlier this month intercepted messages from a broader swathe of ...

Waltz questioned about Signal chat fallout Sen. Chris Coons of Delaware questioned Mike Waltz on his use of the messaging app Signal while he was President Trump's national security adviser.

Researchers are seeing exploitation attempts for the CVE-2025-48927 vulnerability in the TeleMessage SGNL app, which allows retrieving usernames, passwords, and other sensitive data.

The scandalous hack of TeleMessage, ... President Donald Trump's national security adviser Mike Waltz has already been ousted for using a bottom-shelf Signal clone for official messaging — but ...

FILE - White House National Security Adviser Mike Waltz listens to a question from a reporter in the James Brady Press Briefing Room at the White House in Washington, Feb. 20, 2025.