mobile pos quite a new idea, anyways how to protect privacy of the users, any chance to reduce the risk to leak the personal info, privacy is top priority for mobile pos. P.S Enox dev scam again in NODEX project...
Indeed, we noticed the node-x scam quickly and gathered our community and raided their discord trying to warn people. Then we barraged their announcement page with warnings. Hopefully this saved some people from investing into their scam.
As far as mobile security, your phone number will never ever be exposed. Although I cannot give away too many details this early in development, we will have developing security measures in place to protect your mobile IP's; some of which may include potential integration of VPS into the mobile apps.