Post #611201

That’s correct, but the XMPP portion of this communication chain is just your device to the JMP service. Any messages sent or received to another phone number are delivered via SMS/MMS. As a result, those messages can be read by unrelated 3rd parties. I assume something similar is possible for voice calls as well (or at the very least the call start/stop times and the other number on the call can be determined). Essentially this just shifts trust from a mobile phone carrier to JMP. However, I understand that it may be more challenging to hack a VOIP number than perform a SIM swap attack. Another benefit of JMP for privacy is the more challenging tracking of location for a JMP phone number. I’m not saying that using JMP is bad. I am saying if you need a secure and private way of messaging someone then this is not the best solution.