Cyber Security Challenge UK [cybersecuritychallenge.org.uk] runs a series of online games that allow amateur cybersleuths and white-hat hackers to test their skills. Those who score well online are invited to a series of regional, in-person competitions. The top performers at these events are then invited to the annual three-day masterclass and team-based competition where they face a realistic scenario created by experts from the sponsoring companies.
Would you like to play a game?
From:
https://www.bloomberg.com/news/articles/2017-11-15/companies-turn-to-war-games-to-spot-scarce-cybersecurity-talent [bloomberg.com]