Your comment (and its sibling) substantially agree with what I wrote - there isn&#x27;t absolutely unbreakable cryptography, only reasonably secure. Therefore the parent doesn&#x27;t make sense.<p>Now, is a cryptography that can&#x27;t be broken by anyone except <i>maybe (that hasn&#x27;t even happened yet)</i> through a specific court order signed by a judge, reasonably secure? I think it qualifies as such. If you need <i>even more</i> security, I&#x27;m sure you can use specialized software to achieve it - I&#x27;m not saying you shouldn&#x27;t be allowed to.