NSA/CSS @NSAGov
What better way to start a new month than with a #GCHQPuzzle! Take a look at this week's puzzle and let us know what you come up with. — PolitiTweet.org
GCHQ @GCHQ
See in the new month with a new #puzzle. It's #GCHQPuzzle time! #MondayMotivation https://t.co/c6sa5cBYNB