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September 23, 2026
09:00 - 18:00 (Porto local time)
Porto, Portugal
Put your skills to the test at the AppSec Days Portugal CTF. Challenges span a wide range of security domains - from web vulnerabilities and reverse engineering to cryptography and binary exploitation. Whether you have never touched a CTF before or you hunt bugs professionally, there is a challenge at the right level waiting for you.
All skill levels
Live, jeopardy-style
Included with conference ticket
Organized by xSTF.pt
Beginner Friendly
Introductory challenges are designed to be approachable for first-timers, with guidance and community support on site.
Real-World Challenges
Challenges are rooted in real-world security scenarios across a wide range of domains and disciplines.
Hard Mode Available
Seasoned bug hunters will find advanced challenges that demand deep technical knowledge and creative exploitation.