Learn cybersecurity with high schoolers across Australia.
HSCC is a student-run community for high schoolers who are into cybersecurity. Whether you're just getting started or already competing in CTFs, it's a place to learn, build skills and meet people who share the interest.
A place to learn, build and connect.
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Learn
New to security? Start here. Already playing CTFs? Keep sharpening. Beginners and regular competitors share the same space.
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Build skills
Pick up web, crypto, forensics and reverse engineering alongside people at your level, and a few steps ahead of it.
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Connect
Find teammates for CTFs, hear about events first and meet students from other schools and states.
Outback Overflow '26 is our first event.
A free, online, jeopardy-style capture the flag competition. Open to everyone, with dedicated prizes for high school teams.
Challenges span web exploitation, cryptography, forensics, reverse engineering, OSINT and more, from beginner-friendly to advanced. We're building them with support from university security societies including UNSW SecSoc, UTS Cybersecurity Society, and more.
- When
- 21–22 November 2026
- Where
- Online, on CTFd
- Who
- Open to all
- Cost
- Free
Get involved.
We're looking for players, challenge authors, sponsors and anyone who wants to help grow cybersecurity education for young people in Australia.
- PlayJoin the Discord to find teammates and hear when Outback Overflow registration opens.Join the Discord
- Write challengesChallenge authors build what players solve. Tell us what you'd like to make.Email us
- SponsorBack the prizes, infrastructure or challenges, and put your name in front of the next generation of security professionals.Talk sponsorship
- Spread the wordShare Outback Overflow with your school, your CTF team or your university society.Visit the event site
Sponsors
Outback Overflow sponsors will be listed here as they're confirmed. Want your organisation on the list? Email [email protected].