MetaCTF

MetaCTF December 2025 Flash CTF

Sat, December 20th, 12:00 PM - 3:00 PM ET (UTC-5)

You are invited to participate in this event! Register now to save a spot and see more information about the competition. Contact us if you have any questions.

There will be 5+ challenges, and you will have 3 hours to solve as many as you can. Participation is individual and free to enter.

This is an individual competition. No collaboration is allowed until the competition ends.

Event Partners:

Antisyphon Training
Simply Cyber Academy
TCM Security

Prizes:

Top 3 teams will also get to pick two prizes from the following categories. The rest will be raffled to those who solve at least one challenge:

2+ tickets to the DistrictCon 2026 conference in Washington, DC

$300, $200, $100 Amazon gift cards sponsored by Antisyphon Training *

Simply Cyber Academy GRC Analyst Master Class

1-year access to the online Antisyphon Training course catalog

$100, $50 gift certificates to the Spearphish General Store *

1-mo access to the TCM Security Academy


* Please note that cash prizes are only available to participants in the United States

For practice, check out the challenges and solutions from our previous Flash CTF at https://mctf.io/practice.