Signal is one of the most well-known WhatsApp alternatives. But this messenger isn't just for smartphone chatting. Here's how users can communicate on PC or Mac as well.

Defense Secretary Pete Hegseth directed the installation of Signal, a commercially available messaging app, on a desktop computer in his Pentagon office, said three people familiar with the matter ...

Until recent news involving the Signal app, it was a relatively unknown messaging app compared with WhatsApp to many nontechnical users.

The Signal Desktop app now has a new security feature to prevent Microsoft Recall from taking screenshots of chats. This feature utilizes a flag similar to Android's "FLAG_SECURE" to protect user ...

The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here's what to know about Signal, including who owns it and whether it's safe to use.

Defense Secretary Pete Hegseth directed the installation of Signal, a commercially available messaging app, on a desktop computer in his Pentagon office, said three people familiar with the matter ...