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

Signal is now developed by Signal Messenger LLC, a software company founded by Moxie Marlinspike and Brian Acton in 2018, which is wholly owned by a tax-exempt nonprofit …

Mar 25, 2025 · Defense Secretary Pete Hegseth and other Trump officials allegedly used Signal for a group chat to discuss a highly sensitive operation.

State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else …

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 communication completely private.

Signal users can send private messages and make secure calls to other Signal users anywhere in the world for free over the internet. All Signal-to-Signal communication is private and end-to …

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

Understand the basics of Signal on Android, iOS, and Desktop. Explore rich features of private messaging. This section contains common questions regarding safety and reliability of the …

Jul 8, 2025 · Signal is also open-source, which is unique on this list. That means anyone can look at and inspect the code used to make Signal work and ensure the app is doing what it's …

Mar 28, 2025 · After ‘Signalgate,’ the encrypted-communication app is rocketing up the app charts, even as the Trump administration attempts to shift blame. Is that a good thing for …