Outgoing National Security Advisor Mike Waltz was photographed during a Cabinet meeting using an app labeled "TM SGNL". The app, which appeared to be a modified version of the encrypted messaging app ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...

The controversial conservative government blueprint Project 2025 included a training video addressing whether Republican administration officials should use Signal and similar messaging apps for ...

Trump officials have come under fire for using the app to discuss war plans. As the White House comes under fire for allegedly using Signal to discuss sensitive foreign policy plans, the encrypted ...