Download Signal for Android, iOS, Linux, macOS, and Windows.

Say "hello" to a nonprofit messaging and calling experience focused on your privacy, combined with all the features you expect.

Signal is an open-source, encrypted messaging service for instant messaging, voice calls, and video calls. [14][15] The instant …

Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your chats …

Mar 4, 2022 · Signal is a secure encrypted messaging app. Think of it as a more private alternative to WhatsApp, Facebook …

Installing Signal Fast, simple, secure. Signal is privacy that fits in your pocket (or on your desk). Download Signal here or follow the …

Signal helps organizations detect, analyze and respond to emerging security threats with the power of artificial intelligence. Get real …

Mar 25, 2025 · Signal also has something called a “safety number,” which is a code assigned to an individual that helps you verify …

Getting Started Understand the basics of Signal on Android, iOS, and Desktop. Features Explore rich features of private messaging. …

The Signal Protocol (formerly known as the TextSecure Protocol) is a non- federated cryptographic protocol that provides end-to-end …