Interestingly secure distribution is a harder problem than encrypted messaging. If both you and I have an shared app, then we have some shared data and protoco

Interestingly secure distribution is a harder problem than encrypted messaging. If both you and I have an shared app, then we have some shared data and protocols we can use to protect our communications and maintain security, but when you download an app you do not yet have any protection unless that protection is provided by an app store (and such app store protections disappear at the first court order). Bootstrapping security over insecure channels against nation state threats is close to impossible, maintaining security you have already achieved over a brief window of time is still hard but achieve given existing technologies. I see no evidence ISIS is capable of doing either. As further evidence observe that the US just blew up their super secret cash reserve.