GCHQ reveals solution to its Christmas crypto puzzle that nobody could solve
Feb08
GCHQ’s director, Robert Hannigan, included a challenge in his Christmas card this year that was subsequently opened to the public in an attempt to see if anyone could solve it. Well, after receiving over half a million attempts, the agency has revealed that not one person managed to crack the code so it has published the solution. While none of the 600,000 people who submitted their attempts managed to get through all five stages, GCHQ did note that three people came very close. These include a man from Scotland and a man from Belgium but the agency gave no details…
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