Enigma

Permanently Closed - In 1987 GCHQ’s Central Training School moved from Bletchley Park to Culmhead. A small group of cryptographers remained within Bletchley under orders to uphold National Defence through intercepting and deciphering intelligence. This department became the “Bletchley National Defence Cybersecurity Unit” in 2010. Just recently, one of the cryptographers uncovered a threat to the Government network and was horrified to realise the traitor was in her team! She narrowed the suspects down to five people, but she has now mysteriously disappeared! You have one hour to complete her work and stop the attack!