
CTF Competition Hub
Welcome to Raiders of the Lost Flag! Become a cyber archaeologist, explore expedition-themed cybersecurity puzzles, and recover as many hidden flags as you can. No experience required.
Expedition OpensOctober 21, 2026
12:00 PM PT
12:00 PM PT
Expedition ClosesOctober 28, 2026
11:59 PM PT
11:59 PM PT
Results AnnouncedOctober 30, 2026
Company-wide Meeting
Company-wide Meeting
What Is Capture the Flag (CTF)?
A CTF is a fun, hands-on set of cybersecurity challenges. Investigate clues, solve puzzles, and find hidden information called flags.
Choose a challenge, recover its flag, and submit it in CTFd to earn points. Try to solve as many as possible in the least amount of time.
Expedition Guidelines
- Hints are free and do not reduce your score.
- Research, experiment, and complete available challenges in any order.
- Only interact with the event's authorized links, files, and challenge environments.There is no need to download software to solve the challenges.