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 and 92 active-teams with 255 active-players on the field. We specially thank to our sponsors Checkpoint Software, OpenText and Keysight, our supporting organization DPO, HKSARG and various community supports for their kind support to the event. We hope you guys like all the challenges and prizes we offered. See you again next year!

Like last year, we also have media coverage by HK01, you can find their report here:

理大頂尖團隊再辦CTF賽事　以實戰經驗培育新一代網絡安全專才 | 香港01 https://www.hk01.com/article/60259936

Archived event page and scoreboard can be found here and here, respectively.

Let’s re-visit the moments of the event:

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See you around 🙂