Outback Overflow '26


A free 24-hour online CTF for Australian high schoolers

21 Nov 10:00 AEDT – 22 Nov 10:00 AEDT


--
DAYS
--
HOURS
--
MINS
--
SECS

Built by high schoolers, for high schoolers.
Challenges across web, crypto, forensics, pwn, rev, AI & misc.



Register Login


hscyber.org  |  Discord


Organised by the High School Cybersecurity Community (HSCC)