The PolyU x NuttyShell Cybersecurity CTF 2026 is coming soon in 6-8 March 2026! Stay tuned with us and we will see you in the competition! Information: https://2026.polyuctf.com/
PolyU CTF Qualifier 2025/2026 has ended
Thanks for your participation in the PolyU CTF Qualifier 2025/2026! It has finally ended and we have recruited 10+ members to the team. This 48-hours long CTF qualifier spans from 03-Oct-2025 (Fri) 18:00 to 05-Oct-2025 (Sun) 18:00, and this year we have flag hoarders! We have also successfully brought together participants from all around the […]
Thank You for Joining us in the Orientation Showcase 2025
Thank you for joining us in the Orientation Showcase 2025 held on 28-Aug-2025. Without your active participation, this event will never be such successful. We hope you liked our 4 cybersecurity demonstrations (AI Prompt Injection with Vault, NutsApp Phishing Demo, Fake Wi-Fi with Wall of Sheep, and Cyber Health Check) on that day and we […]
PolyU CTF Qualifier 2025/2026 is Coming Soon!
The PolyU CTF Qualifier 2025/2026 will be held on 3-Oct-2025 to 5-Oct-2025. It will be a 48-hour jeopardy-style online CTF event. Same as last year, we will have prizes for the top-3 contestants! For more information, please visit the CTF Qualifier page, or refer to the following poster: See you on the competition day!
Our Team will be in Orientation Showcase 2025
We welcome you to join the Orientation Showcase 2025 on 28-Aug-2025! We will have even more CTF and ethical-hacking related demonstration and souvenirs in our booth, feel free to come around and learn more about CTF 🙂 All current students, especially freshmen are welcomed!
4th Runner Up: 2025 HackTheon Sejong International Collegiate Cyber Security Competition
Congratulations to our CTF Team on obtaining 4th-Runner Up in “2025 HackTheon Sejong International Collegiate Cyber Security Competition” organized by the South Korea Sejong City Government. The competition was held on 11 Jul 2025 on site at Government Sejong Convention Center (SCC), Sejong City, South Korea, and aims to foster cybersecurity talent and promote information […]
PolyU x NuttyShell Cybersecurity CTF 2025 has ended!
Thanks again for your participation in the PolyU x NuttyShell Cybersecurity CTF 2025! The online competition has ended on 21-Apr-2025, with a prize presentation ceremony held on 23-Jun-2025 at PolyU CCST! As the second Open CTF we have ever organized, this year it was a huge success by having a massive amount of 126-team registrations […]
PolyU x NuttyShell Cybersecurity CTF 2025 is Coming Soon!
The PolyU x NuttyShell Cybersecurity CTF 2025 is coming soon in April! Stay tuned with us and we will see you in the competition!
2nd Runner Up: HKCERT Capture the Flag Challenge 2024 (Open)
Congratulations to our CTF Team on obtaining BOTH 2nd-Runner Up in the Tertiary Institution Category AND Open Category in “HKCERT Capture the Flag Challenge 2024” organized by HKPC and HKCERT. The competition was held on 8-10 Nov 2024 with a final round on 10-11 Jan 2025 and aims to comprehensively strengthen participants’ skills in both […]
2nd Runner Up: HKCERT Capture the Flag Challenge 2024 (Tertiary)
Congratulations to our CTF Team on obtaining BOTH 2nd-Runner Up in the Tertiary Institution Category AND Open Category in “HKCERT Capture the Flag Challenge 2024” organized by HKPC and HKCERT. The competition was held on 8-10 Nov 2024 with a final round on 10-11 Jan 2025 and aims to comprehensively strengthen participants’ skills in both […]