Windows version of Grab Bag 300 Now Available Apr 21, 14:12 UTC

New Hint for Grab Bag 200 is up. Apr 21, 03:33 UTC

Crypto 250 Apr 21, 00:25 UTC

Flag for Crypto 250 was wrong and has been updated.

Windows Versions for Game Challenges Apr 20, 22:29 UTC

We uploaded Windows executable files for Grab bag 200 (Gas Pump Simulator) and Crypto 250 (Platform 9 and 3/4ths)

No VPN certificates required for this years compettion Apr 20, 21:18 UTC

We have removed the requirement this year on competitors to connect via OpenVPN. All challenges this year are fully accessible on the open internet.

Game has started! Apr 20, 19:01 UTC

Hello competitors,

This is just a friendly reminder that the 2018 MITRE CTF has now started. If you have any problems during the competition please make sure to join us on Discord


Please update your profile Apr 11, 17:41 UTC

Hello competitors,

This is quick reminder to please check and make sure your profile is up to date. We have added an “Interested in employment” option in order to reduce noise to competitors who are not interested in recruitment emails. If you are interested in recruitment emails from MITRE please take a moment to make sure this box is checked on your profile. The option to do so can be found by clicking on your name in the top right corner of the scoreboard and choosing “Edit your account”.

Thank you,


2018 Registration now open Jan 2, 22:02 UTC

Registration for our 2018 competition is now open. The competition this year runs from April 20th 2018 at 7:00 PM UTC until April 21st 2018 at 7:00 PM UTC. We have left all teams and users from our 2017 competition intact. Users will still be able to add and remove themselves from a team through the scoreboard. If you have any questions please feel free to contact us at