This BBC press release/story informs us that a Cambridge computer science student called Jonathan Millican has won the UK Cyber Security Challenge.
The BBC story described the competition as “GCHQ-backed”, which made me think it was about canyoucrackit.co.uk, but that seems not to be the case. This thing was apparently a series of competitions sponsored by private companies, leading up to a final at HP Labs in Bristol.
Apart from the GCHQ link, there doesn’t seem to be much mathematical meat in the story – the final challenge seemed to be assessing contestants’ abilities to devise security plans while “appreciating the business situation in which the events happen” which I think is a euphemism for “not spending too much money”.