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

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: ...

As national security services warn that Russian hackers are currently engaged in new global attacks against WhatsApp and Signal users, here’s how to stay safe.

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 ...

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 ...

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 ...