Bruce Schneier, a long time Cyber Security expert, examines one (of the many) delusions purported by A.G. Barr. Mr. Schneier examines why Barr's insistance on only viewing "personal" communications is fatally flawed and illogical.
https://www.schneier.com/blog/archives/2019/08/the_myth_of_con.html
Schneier's site is a wealth of information for people interested in discovering the threats that come from having everything interconnected and online.
(CyDeRinc & Schneier.com are unrelated in any manner)