Saturday, October 31, 2026
What it is SecLeaf Q4 CTF 2026 is a 24-hour international Capture The Flag (CTF) competition organised by SecLeaf, running from 31 October 2026. It is a hands-on cybersecurity challenge where participants solve practical security problems across multiple categories and compete against teams from around the world.
Who it's for The event targets cybersecurity enthusiasts, ethical hackers, penetration testers, security researchers, students, and developers who want to sharpen their offensive and defensive security skills. Teams of 1 to 4 members are allowed, making it accessible both to solo competitors and small squads.
What to expect
How to participate
Key details
About the organiser SecLeaf is a cybersecurity community that runs CTF competitions and security-focused events. Their CTFs are designed to give participants realistic, practical challenges rather than purely theoretical exercises, and they maintain an active Discord and WhatsApp channel to keep the community engaged between events. The Q4 edition continues this series, offering a platform for both newcomers and experienced players to test their skills in a competitive, time-bound environment.
Why attend CTFs are one of the most effective ways to build practical security skills, learn new techniques, and network with like-minded professionals. For developers and founders building products, participating or following such events helps build awareness of common vulnerabilities and secure coding practices. The international nature of SecLeaf Q4 CTF means participants get exposure to a diverse set of challenges and competitors, making it a valuable addition to any security practitioner's calendar.
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