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Viewing 15 topics - 1 through 15 (of 49 total)

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- The official Challenge 10 tips and hints thread 1 2 … 12 13
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 49
- 186
- 2 months, 2 weeks ago
  f6exb
- Welcome
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 9
- 11
- 3 months ago
  Crackerjack
- Getting in touch with potential winners
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 4
- 5
- 1 month ago
  loony
- Stuff to do while you wait (with a message from Harry added) 1 2 3 4
  Started by: madness in: Bureau of Security and Signals Intelligence Forum
- 12
- 59
- 2 months ago
  The-Letter-Wriggler
- Bug reporting 1 2
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 13
- 20
- 2 months ago
  Stacey
- The story 1 2 3 4
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 14
- 53
- 2 months, 1 week ago
  traingirl
- Thank You!
  Started by: Shinglington in: Bureau of Security and Signals Intelligence Forum
- 2
- 2
- 2 months, 1 week ago
  Shinglington
- Past Cipher Challenges Unavailable
  Started by: dweglowski2 in: Bureau of Security and Signals Intelligence Forum
- 0
- 1
- 2 months, 2 weeks ago
  dweglowski2
- Typo in Madness’ “A book on classical cryptography”?
  Started by: Shinglington in: Bureau of Security and Signals Intelligence Forum
- 3
- 2
- 2 months, 2 weeks ago
  Mariya07
- Congratulations …
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 1
- 1
- 2 months, 2 weeks ago
  Harry
- Puzzles 1 2 3
  Started by: Harry in: Bureau of Security and Signals Intelligence Forum
- 11
- 35
- 2 months, 2 weeks ago
  The-Letter-Wriggler
- Forum: to do and wishes
  Started by: f6exb in: Bureau of Security and Signals Intelligence Forum
- 0
- 1
- 2 months, 2 weeks ago
  f6exb
- 9b 1 2
  Started by: Paarush_Dhawan14 in: Bureau of Security and Signals Intelligence Forum
- 23
- 23
- 3 months, 1 week ago
  Mattyrat2027
- Another challenge (from GCHQ)
  Started by: ThompsonJ in: Bureau of Security and Signals Intelligence Forum
- 0
- 1
- 3 months, 1 week ago
  ThompsonJ
- What is a Porta cipher?
  Started by: madness in: Bureau of Security and Signals Intelligence Forum
- 3
- 4
- 3 months, 2 weeks ago
  madness

Viewing 15 topics - 1 through 15 (of 49 total)

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