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Does anyone know how secure Facebook Messenger communication is? If you are having 1x1 chat (writing messages) or making a voice call, is it encrypted (end to end)?

I know if you are using facebook.com for chat, it is on HTTPS and that is secure. My question is related to the Messenger app on Android.

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Yes, it is secure. The connection is made using TLS 1.2. This is from a tcpdump capture on my device:

192.168.0.11  31.13.69.195 (edge-mqtt-shv-01-iad3.facebook.com)  TLSv1.2  Application Data
31.13.69.195  192.168.0.11                                       TLSv1.2  Application Data
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  • Good information! What'd be your answer I asked the same question for Snapchat?
    – SarpSTA
    Commented Mar 25, 2016 at 20:28
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    @SarpSTA I don't have Snapchat, I'd suggest posting a separate question. Commented Mar 25, 2016 at 20:35

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