As it turns out, including a reporter in your national security leader group chat about military strikes isn't the only way to compromise sensitive information on Signal. NPR reported on Tuesday that, ...

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 Russian state-sponsored threat group APT28 is using Signal chats to target government targets in Ukraine with two previously undocumented malware families named BeardShell and SlimAgent. To be ...