Here's what to know about the messaging app used by Trump Administration officials to discuss military strikes on Yemen.

Russian state-sponsored hackers have been linked to an ongoing Signal and WhatsApp phishing campaign targeting government officials, military personnel, and journalists to gain access to sensitive ...

The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for American forces.

The Signal team has rolled out a small feature in the latest version of the messenger that lets you pin messages to the top of the chat. Signal has announced a small update coming to its Messenger: ...

Signal warns that hackers have been impersonating a non-existent 'Signal Support Bot' to trick targets into handing over login authentication codes.

As the majority of tech companies lean into AI features and AI agents, Signal’s president, Meredith Whittaker, is pushing back. The Signal boss told Fortune that the rise of AI agents poses an ...

Signal says its systems are secure but it is taking reports of targeted attempts to hack some officials "very seriously".