Welp, here we go again - Signal[0] as an alternative. It's fully Open-Source (including the backend) and their crypto is public and independently verified[1][2]

Welp, here we go again - Signal[0] as an alternative. It's fully Open-Source (including the backend) and their crypto is public and independently verified[1][2][3]... [0] https://signal.org/en/ https://signal.org/en/ [1] https://en.wikipedia.org/wiki/Signal_(software)#Encryption_p https://en.wikipedia.org/wiki/Signal_(software)#Encryption_p... [2] https://threatpost.com/signal-audit-reveals-protocol-cryptog https://threatpost.com/signal-audit-reveals-protocol-cryptog... [3] https://eprint.iacr.org/2016/1013.pdf https://eprint.iacr.org/2016/1013.pdf [PDF]