The United States National Security Agency — the country’s premier signals intelligence organisation — recently declassified a Cold War-era document about code-breaking. The 1977 book, written by ...

The United States National Security Agency — the country’s premier signals intelligence organization — recently declassified a Cold War-era document about code-breaking. The first two parts of the ...

All the Latest Game Footage and Images from Codebreaker Puzzle 1000! ENG & JAN Fill in specified characters to same number blanks to complete all words in puzzle. Content 2000 questions in 4 level ...

All the Latest Game Footage and Images from The Rain Spirit : Code Breaker A First Person , Atmospheric Puzzle Exploratory Game. Uncover a huge interactive world filled with codes , clues and puzzles ...

If you fancy yourself as a budding sleuth, hacker or code-breaker, GCHQ has released its annual Christmas challenge and is encouraging people to try and crack the puzzle. Featuring designs from ...