A dozen current and former officials confirmed that the encrypted messaging app is used across various agencies — despite warnings about its security vulnerabilities.

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 ...

Signal Private Messenger can now be searched for and downloaded on Windows PCs directly via the Microsoft Store.

Independent journalist Cam Higby broadcasted an audio dispatch feed of a group using the Signal app to coordinate efforts to obstruct Immigration and Customs Enforcement (ICE) on […] ...

Earlier this year, Phoenix New Times reported that MAGA-aligned Pinal County Attorney Brad Miller had hidden official communications by using the encrypted messaging app Signal, including at one point ...

The probe, announced via podcast, has been widely criticized.

Former national security adviser Mike Waltz, testified before the Senate Foreign Relations Committee in his bid to become U.N. ambassador, stood by the use of Signal in a chat that discussed sensitive ...