YBNCTF 2025
A Festive Cyber Challenge
About YBNCTF
YBN CTF is an annual beginner-friendly Capture the Flag (CTF) competition by Yes But No (YBN), a cybersecurity youth group from Singapore. Our goal is to engage students and professionals alike, providing a space for continuous learning and skill development in Cybersecurity.
This year, get ready for a special Christmas-themed event spanning 12 days, with new challenges unwrapped daily!
Event Details
Date
20th Dec 2025 - 1st Jan 2026
Target Participants
Cybersecurity Enthusiasts of all ages
Duration & Mode
12 days, Online (12pm to 12pm next day)
Challenge Release Schedule
Day 1
Dec 20
Day 2
Dec 21
Day 3
Dec 22
Day 4
Dec 23
Day 5
Dec 24
Day 6
Dec 25
Day 7
Dec 26
Day 8
Dec 27
Day 9
Dec 28
Day 10
Dec 29
Day 11
Dec 30
Day 12
Dec 31
Our Sponsors
Gold Sponsors
Silver Sponsors
In-Kind Sponsors
