Sieberrsec CTF 6.0

Hack things. Win prizes.

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About Sieberrsec CTF 6.0

🌟 What is Sieberrsec CTF?

Now in its sixth edition, Sieberrsec CTF (SCTF) is a cybersecurity competition for secondary school and pre-university students. With a focus on making technical cybersecurity skills more accessible to our youths, SCTF strives to create a high-quality competition, alongside a conducive learning environment through the implementation of training resources and support for participants besides the competition itself.

🎯 Who Can Participate?

Open to all secondary and pre-university students in Singapore! Whether you're a seasoned CTF player or just starting your cybersecurity journey, SCTF offers challenges ranging from beginner-friendly to semi-expert-level.

🏆 Competition Format

In SCTF 6.0, there will be a range of challenges for you to solve. In each challenge, your goal is to make use of cybersecurity exploits to find a "flag". The more flags you find, the higher the number of points you get. Top performing players in the virtual qualifiers will get to duke it out in the physical finals.

Event Timeline

30 June 2025

Registration Opens

Team registration begin. Form up your teams!

7 July 2025

Release of Virtual Training Resources

18 July 2025

Registration Closes

19 July 2025 - 9:00 AM

Qualifiers Begins! 🚀

Platform opens with qualifier challenges.

19 July 2025 - 9:00 PM

Qualifiers Ends 🏁

Submit all flags. Scoring freeze and finals invites will be sent out soon after.

20 July 2025 - 9:15 AM (Timing TBC)

[In-Person @ NUS] Finals Begins! 🚀

Platform opens for finals. Welcome ceremony and rules briefing.

20 July 2025 - 5:00 PM (Timing TBC)

[In-Person @ NUS] Finals Ends 🏁

Submit all flags! Sponsor talk and awards ceremony to follow shortly.

Prizes & Recognition

🎓 Pre-University

🥇
$1,000

First Place

🥈
$750

Second Place

🥉
$500

Third Place

🏅
$250

Fourth Place

🏅
$100

Fifth Place

🏫 Secondary

🥇
$300

First Place

🥈
$200

Second Place

🥉
$100

Third Place

Our Sponsors

Frequently Asked Questions

Click the registration button and fill out the form. You can register as an individual or as a team of up to 4 members. Registration is free and open until 18 July.
Sieberrsec CTF is entirely free as an event. However, we will not be covering your transport cost in the event you qualify and go for the in-person finals.
Yes, just ensure that you indicate so during registration.
Secondary School Category: Any student currently enrolled and studying in a Singapore secondary school.
Pre-University Category: Any student currently enrolled in and studying in a Singapore pre-university school or institution. Secondary school students can play under this category too, if they wish to do so.
Yes! The team will be considered to be under the pre-university category.
Yes!

Join the Hunt

Ready to explore the world of Sieberr?

Registration opens 30 June 2025.

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Questions? Contact us at [email protected]
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