Last seen in:
- Universal - Aug 8 2024
- Eugene Sheffer - King Feature Syndicate - May 17 2023
- Universal - Jun 10 2021
- Eugene Sheffer - King Feature Syndicate - Sep 9 2020
- Eugene Sheffer - King Feature Syndicate - Feb 12 2020
- Eugene Sheffer - King Feature Syndicate - Sep 29 2018
- Eugene Sheffer - King Feature Syndicate - Aug 28 2018
- The Sun - Two Speed - Jul 22 2018
- The Guardian - Quick crossword No 15,026 - Jul 4 2018
- L.A. Times Daily - Feb 20 2017
Related Clues:
- Prepared for transmission
- Unreadable
- Like many wartime messages
- Having secret marks, maybe
- Like DNA
- Like something written in 21-Across
- Ciphered
- Like cryptograms
- Cryptic
- Like some messages
- Requiring cracking, perhaps
- Secure, as online financial transmissions
- Impossible to read
- Did some programming
- Like wartime messages