Signal is designed to never collect or store any sensitive information. Signal messages and calls cannot be accessed by us or other third parties because they are always end-to-end encrypted, private, and secure.
Here's how to determine if your communication is private:
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In addition to supporting end-to-end encrypted messages and calls with other Signal users, Signal Android can be configured as your default SMS/MMS app. In this case, you may want to know when your communication is private (Signal message) or insecure (SMS/MMS).
When you are securely communicating with another Signal user, you will see the following indicators:
- The text input field will show Signal message.
- The send icon will be blue with a closed lock after you type a message.
- Signal voice and video calls have a distinct look and display Signal on the screen.
Audio Call Video Call
All Signal communication on Signal iOS is private. There's nothing extra you need to do or look for.
All Signal messaging on Signal Desktop is private. There's nothing extra you need to do or look for.