CTF Challenge
Workshops
Award Ceremony
Important Date
CTF Challenge
| CTF Challenge | |
| Qualifying Round | 4:00 PM (HKT), December 19 – 4:00PM (HKT), December 21, 2025 (48 hours) |
| The system will operate for 48 hours continuously and participant can access anytime in the Qualifying Round | |
| Final Round (1 day daytime physical competition) | February 6, 2026 from 0900 to 1800 (HKT) |
| Online Registration | From now until December 14, 2025 (Sunday) |
| Registration Link | https://forms.hkcert.org/hkcertctf2025 |
| Leaflet | |
| Appendix A | |
Workshops
| 1st Qualifying Round Workshops (Online) (Registration Required) | |
| Date: | November 29, 2025 (Saturday) |
| Time: | 10:00 am – 01:00 pm |
| Agenda: | Web, Crypto and Misc / Forensic |
| Video: | |
| 2nd Qualifying Round Workshops (Online) (Registration Required) | |
| Date: | November 29, 2025 (Saturday) |
| Time: | 02:00 pm – 05:00 pm |
| Agenda: | Reverse Engineering and Pwn |
| Video: | |
| Post-Qualifying Workshop | |
| Agenda: | Writeup of the diffcult questions in the Qualifying Round (detailed explanation of solutions and problem-solving approaches) |
| Video: | |
| Final Round Workshop | |
| Date: | January 24, 2026 |
| Part 1 | |
| Agenda: |
|
| Video: | |
| Part 2 | |
| Agenda: |
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| Video: | |
| Past Workshop | https://www.youtube.com/playlist?list=PLi4stWN75PY54iDwb3JIHi3nz3ZRvB07b |
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Award Ceremony
| Award Ceremony | |
| Date and Time | February 6, 2026 (Following the final round) |
| Detail | TBC |
Important Date
1st Qualifying Round Workshops (online) (Registration Required)
- November 29, 2025 (Saturday) from 1000 to 1300
- Agenda: Web, Crypto and Misc
2nd Qualifying Round Workshops (online) (Registration Required)
- November 29, 2025 (Saturday) from 1400 to 1700
- Agenda: Reverse Engineering and Pwn
Online Registration
- From now until December 14, 2025 (Sunday)
Qualifying Round
- December 19–21, 2025 (48 hours)
Announcement of Advancement
- December 29, 2025 (Monday)
Post-Qualifying Workshop
- January 3, 2026 (Saturday) – Tentative
- Agenda: Writeup of the difficult questions in the Qualifying Round (detailed explanation of solutions and problem-solving approaches)
Final Round Workshop (online) ( Registration Required )
- Mid-January, 2026
Final Round (onsite)
- February 6, 2026 from 0930 to 1730
Award Ceremony (onsite)
- February 6, 2026 (Following the Final round)