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  Signal -- HTTPS Activity 2

Category: IM      

Signal (from Open Whisper Systems) is a free, open-source, end-to-end encryption app for making private phone calls over the Internet, and sending private SMS and MMS messages for iPhone and Android. It does high-quality group, text, picture, and video messages, all without SMS and MMS fees.

This SonicWALL signature identifies legitimate network traffic from Open Whisper Systems.



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