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Events & hackathons

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HKCERT CTF 2026 (Qualifying Round)

HKCERT Capture The Flag 2026,” organised by the Hong Kong Computer Emergency Response Team Coordination Centre (HKCERT), the Hong Kong Productivity Council (HKPC) and the Digital Policy Office of HKSAR, is now in its sixth edition. It is on

· Online
Online CTFCybersecurityCTFupcoming

PINK+ CTF 2026

The first iteration of PINK+ CTF. Explore a variety of hand crafted challenges with a focus on steganography!

· Online
Online CTFCybersecurityCTFupcoming

CSCTF 2026

"CSCTF 2026: Total Warfare" is an international, online, free jeopardy-style CTF focused on realistic cybersecurity scenarios inspired by critical infrastructure, defense, and modern adversary tactics.

· Online
Online CTFCybersecurityCTFupcoming

SpookyCTF 2026

EVENT TIME HAS BEEN SHIFTED TO START AND END 2 HOURS AFTER TIME LISTED ABOVE

· Online
On-site CTF (offline)CybersecurityCTFupcoming

BlackAlps CTF 2026

The BlackAlps CTF will be held at the end of the BlackAlps conference in Yverdon-les-Bains in Switzerland. It's a CTF for all level including from beginner up to advanced team.

· Switzerland, Yverdon-les-Bains
Online CTFCybersecurityCTFupcoming

Mimic

Mimic is an online Jeopardy-style CTF by Rare Byte Hub. Some challenges are exactly what they look like, and some aren't. Figure out which is which. There's something for everyone, from beginners to experienced players. Teams of 1-4 members

· Online
Online CTFCybersecurityCTFupcoming

CSAW CTF Final Round 2026

CSAW CTF is one of the oldest and biggest CTFs. Designed as an entry-level, jeopardy-style CTF, this competition is for students who are trying to break into the field of security, as well as for advanced students and industry professionals

· Online
Online CTFCybersecurityCTFupcoming

TVX CTF 2026

TVX CTF is a cybersecurity Capture The Flag competition organized by Tech Visions.

· Online
Online CTFCybersecurityCTFupcoming

Platypwn 2026

The Platypwn 2026 is an online Jeopardy CTF which offers easy challenges for beginners, but also medium and difficult challenges for advanced players.

· Online
Online CTFCybersecurityCTFupcoming

WolvCTF 2026

Our challenges range from beginner to hard in difficulty. Our esteemed members have worked tirelessly to bring new and stimulating CTF challenges to pose varying levels of difficulty and topic (RE, binary exploit, web exploit, cryptography,

· Online
Online CTFCybersecurityCTFupcoming

InIt CTF

InIt CTF is HII's (Hackers in India) beginner-focused Capture The Flag event, free and open to participants across India and internationally. 8 hours, Jeopardy-style, solo or teams of up to 4, across Web, Crypto, Forensics, OSINT, and Misc

· Online
Online CTFCybersecurityCTFupcoming

h4ckc0n 2026

h4ckc0n is a 24-hour international Jeopardy-style Capture The Flag competition.

· Online