You change your profile picture on Signal, the open-source messaging app, anytime from the app's Settings menu.

You can mark any message as unread on Signal in the Android and iPhone versions of the secure-messaging app.

T-Satellite, the Starlink-based satellite service, can now do more than just send text messages. Here are the apps that work when you're out of cellular range.

Phone and Android users can reduce Wi-Fi calling battery drainage through settings adjustments, background app limits and ...

A proposed EU law that would allow authorities to bypass encryption to scan private chat messages for criminal content is ...