THE UNI6CTF 2.0
DIWALI EDITION
Lights. Logic. Exploits. Celebrate Cybersecurity.
A 24 hours online Capture the Flag competition for students, professionals, researchers and cybersecurity enthusiasts. Solve practical challenges, develop hands-on skills and experience the spirit of the Festival of Lights.
The challenge is getting closer.
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A Festival of Cybersecurity, Learning and Competition.
THE UNI6CTF 2.0 — Diwali Edition brings the challenge-driven world of cybersecurity together with the spirit of Diwali. Participants investigate security problems, discover vulnerabilities, solve challenges and earn points through practical problem-solving in a focused online environment.
Make practical cybersecurity learning accessible through hands-on challenges, structured competition and responsible security practice.
What is a
Capture The Flag?
Capture the Flag (CTF) is a practical cybersecurity competition in which participants solve security challenges and submit hidden flags to demonstrate successful completion. Each accepted solve earns the configured points for that challenge.
Register. Solve.
Score together.
Follow the competition from sign-up to final standings.
Register
Choose solo or team participation and complete the required registration details.
Join the Competition
Use the CTF access details provided to registered participants when the competition begins.
Solve Challenges
Investigate challenge prompts across the configured cybersecurity domains.
Submit Flags
Submit the flag discovered for a challenge to record a successful solve.
Earn Points
Accepted solutions receive the configured point value for the corresponding challenge.
Final Standings
Final standings and prize eligibility are determined according to the published scoring criteria.
One online
challenge window.
The competition runs for 24 hours. Join online, work through the available CTF challenges and submit flags during the event window.
Explore the
challenge domains.
Each category offers a distinct way to investigate cybersecurity problems.
Web
Identify and exploit vulnerabilities in modern web applications while understanding how seemingly minor weaknesses can become significant security risks.
Cryptography
Analyze cryptographic systems, solve mathematical challenges and identify weaknesses in flawed implementations.
Forensics
Examine digital evidence, recover hidden information and reconstruct events from traces contained within digital artifacts.
OSINT
Investigate publicly available information, connect relevant clues and uncover information hidden in plain sight.
Reverse Engineering
Analyze software, understand program behavior and work backwards to identify functionality, logic and potential weaknesses.
Steganography
Discover information concealed within images, files, media and other digital artifacts.
Hardware
Explore challenges involving hardware, embedded systems and the interaction between physical devices and software.
Miscellaneous
Solve unconventional challenges that demand creativity, experimentation and the ability to approach problems from different perspectives.
& SOLVES
Every solve
moves your score.
Each challenge has a configured point value. Final standings and prize eligibility are determined according to the published competition scoring criteria.
Bring your curiosity
from anywhere.
Registration is open to individual participants and teams. Students, working professionals, researchers and cybersecurity enthusiasts can participate subject to the applicable event requirements.
- Students and learners
- Cybersecurity enthusiasts
- Working professionals and researchers
- Solo participants and teams
participants per registration. Solo registration is supported.
Choose solo or teamMark your
calendar.
Dates and times are shown in Asia/Kolkata (IST, UTC+05:30).
Registration Deadline
Complete your registration before the published deadline.
Competition Begins
The 24 hours online CTF opens for registered participants.
Competition Ends
The competition window closes and final submissions are recorded.
Play fair.
Keep it responsible.
Follow the event participation requirements and practice responsible security.
Participation Format
Solo participation is available. Team registrations support 1–3 participants.
Responsible Participation
Participants must follow responsible security practices and avoid disruptive, abusive or unauthorized activity during the competition.
Ready your
workspace.
The event is online. There are no operating system or specific tool requirements configured.
Stable Internet Connection
The competition is conducted online, so participants should have a reliable internet connection.
Modern Web Browser
Use a current modern browser to access the CTF platform and competition resources.
UNI6CTF CTF Platform
Competition access information is shared with registered participants. The public platform address has not been configured.
Rewards for
top performers.
Champion
Recognition for the highest-ranked eligible participant or team in the final competition standings.
UNI6CTF CommunityRunner-Up
Recognition for the participant or team achieving the second-highest eligible position in the final standings.
UNI6CTF CommunityBest Beginner
Recognition for an outstanding newcomer demonstrating strong fundamentals, creativity and consistent performance.
UNI6CTF CommunitySpecial Recognition
Recognition for exceptional creativity, persistence, technical ingenuity or contribution during the competition.
UNI6CTF CommunityMade stronger
with community.
No confirmed sponsor or partner profiles are configured yet.
Before you
get started.
Event essentials, registration and access.
Who can participate?
Students, working professionals, researchers and cybersecurity enthusiasts can participate, provided they meet the applicable event requirements.
Can I participate solo, and what is the team size?
Yes. Solo registration is available, and team registrations support 1–3 participants.
When and how long is the competition?
24 hours, online, from 3 November 2026 at 8:00 PM IST to 4 November 2026 at 8:00 PM IST.
What is the registration fee?
Registration is ₹111 per participant in India and $2.00 internationally.
What challenge areas are included?
Web, Cryptography, Forensics, OSINT, Reverse Engineering, Steganography, Hardware, Miscellaneous.
Where will the CTF take place?
The competition will be conducted online through the UNI6CTF CTF Platform. Access details will be provided to registered participants.
Ready to join
the challenge?
Register solo or with a team and take part in 24 hours of practical cybersecurity challenges.