MITRE Embedded Capture the Flag (eCTF)
A free, semester-long national cybersecurity competition open to U.S. high school and college students 13 and older, in which teams design and defend a secure embedded system before attacking other teams' designs; MITRE provides free development hardware.
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NorCalCyber Mayors Cup
Regional competition for students in Greater Sacramento and Far North California. Features team-based learning and digital forensics challenges.
picoCTF by Carnegie Mellon University
The largest free cybersecurity hacking competition globally. Solve capture-the-flag challenges in web exploitation, cryptography, forensics, and reverse engineering.
Space Grand Challenge (California Cybersecurity Institute)
Gamified satellite cybersecurity competition designed by Cal Poly for middle and high schoolers. Features space-themed challenges in a Unity WebGL platform.
University of Alabama CTF (UACTF)
A free, hybrid Jeopardy-style capture-the-flag competition hosted by the University of Alabama, open to middle and high school teams competing on campus or virtually across novice-to-advanced divisions.
US Cyber Challenge Cyber Quests
Online qualifier for virtual Cyber Camps. Challenges include forensic analysis, packet capture analysis, and vulnerability assessment. Pathway to summer camps and scholarships.
WUST Cybersecurity CTF
An annual ethical-hacking capture-the-flag competition hosted by the SOC Lab at Washington University of Science and Technology in Alexandria, VA, open to teams of high school, college, and university students, with a free mandatory training workshop beforehand.