Call for CTF 2025
​​BSides Sydney is excited to announce that our Call for CTF is now open!
We’re looking for creative teams and individuals to design and host this year’s Capture the Flag competition, running alongside the conference on 8–9 November 2025.
What we’re looking for:
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Fresh challenges across categories like web, pwn, crypto, OSINT, hardware, forensics, reverse engineering, and more.
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A balance of beginner-friendly puzzles and deep-dive challenges for seasoned players.
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Teams that can design, deploy, and support their challenges during the event.
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A fun, inclusive CTF experience that aligns with the BSides spirit.
What you’ll get:
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A platform to showcase your skills to Australia’s premier hacker and security community.
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Recognition on our website and conference materials.
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Complimentary speaker/organiser tickets for the CTF team.
How to apply:
Send your proposal to info@bsides.sydney with:
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Team/individual name + contact details
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Background/experience in CTF design or similar events
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Proposed challenge categories and estimated number of challenges
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Infrastructure/support requirements
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Any cool ideas or themes you want to bring