Across
- 1. East Germany’s notorious secret police
- 5. Secretly listening to telephone or electronic communications
- 8. Barrier separating East and West Berlin, watched by agents
- 9. Someone who deciphers secret codes or ciphers
- 10. A spy who works for two opposing sides simultaneously
- 14. Information gathered about an enemy or competitor
- 15. Famous Berlin crossing point monitored by spies
- 17. Operating in disguise or without revealing one’s identity
- 19. A secret code used to conceal messages
Down
- 2. Close observation of a person or area, often secretly
- 3. A person who secretly provides information to an authority
- 4. The practice of spying to gather secret information
- 6. A person who works undercover to obtain intelligence
- 7. A secret location where agents can hide or meet
- 11. Term for countries aligned with the Soviet Union
- 12. Something worn to conceal identity or appear as someone else
- 13. Countries aligned with the Western powers
- 14. Secretly entering an organization to gather intelligence
- 16. The process of converting information into a code
- 18. Misleading or tricking someone as part of intelligence work