MetaCTF Nov 20th, 2025 Flash CTF

A free monthly mini CTF competition organized by MetaCTF with support from Antisyphon Training, TCM Security, and Simply Cyber Academy. There will be 6 challenges and you will have 2 hours to solve as many as you can. This CTF will include both beginner and difficult challenges.

Prizes include over $500 in gift cards (sponsored by Antisyphon), free training from their partners, and more for both the winners and randomly selected participants.

Participation is individual and free to enter. Although participation is individual, OWASP Delaware will have a private scoreboard and a Discord voice chat.

Step 0) RSVP here at Meetup (a.k.a. "Attend") this event.
Step 1) Then register for the CTF at https://mctf.io/nov2025
Step 2) From the MetaCTF Dashboard, click "Compete" next to the Nov 2025 event to access the CTF site.
Step 3) Go to the "Scoreboard" page and click "+ Join a Scoreboard". The private scoreboard key is 4e896c
Step 4) During the event join the OWASP Delaware Discord (invite seen after RSVP here at Meetup) to boast of p0wnage, or to ask for help. Don't forget we have a voice chat on Discord (#meta-ctf-voice) where we can all gather.

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

Disclaimer I saw on the MetaCTF practice CTF: "By signing up for this CTF, you consent to be contacted by MetaCTF or sponsors about their services." ¯*(ツ)*/¯