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 ...

A photo taken by Reuters' Evelyn Hockstein during a Cabinet meeting Wednesday shows Waltz holding his phone below the table, with the encrypted-texting app open and visible. It also shows Waltz in ...

Still, when cities go dark, WhatsApp, Signal, and previously, Skype, have served as technological life rafts that keep aid ...

A security breach in an unofficial version of the encrypted messaging app Signal has raised concerns about the vulnerability of communications within the highest levels of the US government, according ...

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

National security adviser Mike Waltz and Defense Secretary Pete Hegseth are facing major backlash over their use of Signal, the encrypted messaging app that the top government officials and other ...

The Signal chat, intended for administrative discussions, reportedly included about a dozen people and revealed the airstrike schedule. Signal is an end-to-end encrypted messaging app touted for its ...

Lindsey Halligan faces scrutiny over claims she used Signal to talk about a politically sensitive prosecution.

A hacker breached TeleMessage, a government-approved messaging app used by Trump administration officials, exposing archived communications from the platform’s modified version of Signal, 404 Media ...

Fort Bend County Judge KP George has moved to throw out his felony case and disqualify District Attorney Brian Middleton and ...

The company behind the Signal clone used by at least one Trump administration official was breached earlier this month. The hacker says they got in thanks to a basic misconfiguration. Only he wasn’t ...

You can invite someone to Signal using the "Invite Friends" menu in the app, which will send a text message or email.