High-level Trump officials used the digital messaging app Signal to communicate sensitive details about an impending military ...

The version of Signal that recently ousted national security adviser Mike Waltz was caught checking during a Cabinet meeting Wednesday is an unofficial edition of the app meant to archive messages, ...

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

Lawmakers from both parties tell TIME they want all of the Signal chat messages after Trump officials insisted none of it was ...

A few weeks ago we witnessed an incident where military leaders inadvertently included a reporter in what was supposed to be a closed, secure communication channel, all due to the use of the Signal ...

Top national security officials for President Donald Trump, including his defense secretary, texted war plans for upcoming military strikes in Yemen to a group chat in a secure messaging app that ...

A magazine journalist's account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive information is ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here's what to know about Signal, including who owns it and whether it's safe to use. The messaging app ...

LAS VEGAS (FOX5) — The ACLU of Nevada is suing the state Department of Motor Vehicles, raising concerns over its alleged use of the encrypted messaging app Signal to communicate with U.S. Immigration ...