Across
- 3. / "deniable" operation
- 6. / Model 1928
- 8. / An encryption device developed and used in early- to mid 19th century
- 10. / Uzeil Gal's most famous invention
Down
- 1. / "Hidden" operation
- 2. / Method of espionage communication
- 4. / the act of obtaining secret or confidential information
- 5. / The study of analyzing information systems in order to study the hidden aspects of the system
- 7. / Russia's CIA
- 9. / Metal hand bindings