Security News > 2016 > February > GCHQs Xmas puzzle proves uncrackable (The Register)
2016-02-02 11:31
News URL
http://go.theregister.com/feed/www.theregister.co.uk/2016/02/02/gchq_xmas_challenge/
http://go.theregister.com/feed/www.theregister.co.uk/2016/02/02/gchq_xmas_challenge/