Just keep in mind that it's incredibly difficult to make anything a 100% secure. The Blackphone gets some interesting things right, but they have/had bugs too:

Just keep in mind that it's incredibly difficult to make anything a 100% secure. The Blackphone gets some interesting things right, but they have/had bugs too: http://arstechnica.com/security/2015/01/bug-in-ultra-secure-blackphone-let-attackers-decrypt-texts-stalk-users/ http://arstechnica.com/security/2015/01/bug-in-ultra-secure-...