Congrats to the 158 teams who participated in FlagCTF 1.0: The Green Flag. Stay tuned for next year, FlagCTF 2.0: 20/20 on June 12-13, 2020 (also held concurrently with Southeast Linux Fest)!

flagCTF starts on Friday, 6/14 at 6:14 pm ET (2019-06-14 22:14 UTC). See this in your local time zone.
Join our Slack: preview.tinyurl.com/flagctfslack and sign in at https://flagctf.slack.com
  • Main Round (Recognition for Teams) ends Saturday, 6/15 at 8:56 pm (1:2:42')
  • Sprint Round (Individual or Team) ends Friday, 6/14 at 8:56 pm (2:42')

  • Fun and educational challenges for beginners and those with serious skills. Challenge categories include:
  • Cryptography
  • Network Traffic Analysis
  • Log Analysis
  • Password Cracking
  • Web Exploitation
  • Binary Exploitation
  • Reconnaissance / Open Source Intelligence
  • Programming and Algorithms

  • What experience do I need to have? None, but if you want to solve all of the challenges, we recommend downloading and installing ahead of time: flagCTF 2019 Team
    Lead Organizer: Parker Garrison (parkergarrison.com, https://www.linkedin.com/in/parkergarrison/)
    Challenge Architect and Writer: Parker Garrison
    Education Stream/Videos: Jackson Compton (LinkedIn)

    Important Note
    Offensive activity is allowed only on designated systems, and not the scoring system. You agree to use all the skills gained in this competition for only legal purposes.

    We recommend creating an account on this site and not logging in with Major League Cyber if it presents an issue logging in.

    Register or Login

    2019, flagCTF. A non-commercial entity.