Gchq 2025 Christmas. Gchq have just published their christmas card for 2025, with the usual festive challenge. As well as the christmas challenge, gchq said it planned to launch its top secret puzzle on instagram this year, which will provide bonus puzzles and hints to completing them.

The government communications headquarters (gchq), the uk’s leading intelligence agency, has once again unleashed its annual christmas puzzle, a fiendishly clever. Gchq) colin, gchq’s chief puzzler, released a quote with a secret message hidden within it.