Develop practical cybersecurity skills through
structured Capture The Flag challenges. Practice
problem-solving, sharpen your technical knowledge,
and prepare for responsible security research.
Find a challenge that matches your current skill level.
2 challenges
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Showing published challenges
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100 pts
The Hidden Flag
Welcome to your first Kimtech Security CTF challenge!
A developer has hidden a secret flag inside the HTML source code of this challenge page. Your task is to inspect the page source, locate the flag, and submit it using the challenge submission form.
Your objective
Open the challenge page.
Inspect its HTML source code.
Find the flag hidden in an HTML comment.
Submit the exact flag to earn 100 points.
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50 pts
Metadata Mystery — Forensics
suspicious image was recovered from a compromised workstation.
The investigator believes the flag was accidentally stored in the image metadata.
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