The Intercept’s Micah Lee wrote about this in March, in an article titled: “You Should Really Consider Installing Signal, an Encrypted Messaging App for iPhone.”
(Signal is for iPhone and iPads, and encrypts both voice and texts;RedPhone is the Android version of the voice product; TextSecure is the Android version of the text product.)
As Lee explains, the open source software group known as Open Whisper Systems, which makes all three, is gaining a reputation for combining trustworthy encryption with ease of use and mobile convenience.
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