Just possibly old versions of truecrypt.<p>This author&#x27;s conclusions seem quite sound to me.  They collapsed it in a way to comply with a gag order while silently sounding an alarm.<p><a href="https:&#x2F;&#x2F;forum.truecrypt.ch&#x2F;t&#x2F;my-analysis-of-what-really-happened-to-truecrypt&#x2F;387&#x2F;3" rel="nofollow">https:&#x2F;&#x2F;forum.truecrypt.ch&#x2F;t&#x2F;my-analysis-of-what-really-happ...</a><p>Anyone operating in this space is eventually going to get the same option as Lavabit&#x27;s founder: compromise or collapse.