http://www.slate.com/articles/technology/future_tense/2015/10/the_u_k_cyber_security_challenge_games_reviewed.html

It can’t be easy to design computer games for the very paranoid. At various points while trying out the U.K. Cyber Security Challenge games, which were designed to identify and train cybersecurity professionals, I managed to convince myself that the whole point of the game was to see whether I was stupid enough to download whatever files I was being instructed to download, that the designers were intentionally providing incorrect passwords to those files to see whether I could find another way to access them, and that the games were nothing but an elaborate ruse to undermine my personal device and network security. It’s not easy for the very paranoid to play computer games either, apparently.