Registration openOnline · Other · ctf, cyber-security, web-exploitation
An international online CTF competition featuring challenges in web exploitation, cryptography, reverse engineering, and digital forensics. Open to teams of 1-4 at any skill level, this free event runs in two rounds on September 18 and 25-26, 2026.
Registration openOnline · Tech · intermediate · ctf, cybersecurity, web-security
An international CTF competition testing cybersecurity skills through online and offline stages. Participants solve challenges in web security, cryptography, and forensics as individuals or teams of up to three.
Registration openChennai · Tech · intermediate · ctf, cyber-security, web-security
A CTF-style cybersecurity competition in Chennai where teams of up to two members solve hands-on security challenges to find vulnerabilities and capture flags. The event tests skills in ethical hacking, web exploits, and responsible disclosure with a competitive leaderboard.
Registration openOnline · Tech · beginner · ctf, cyber-security, web-security
A free, online solo CTF competition testing cybersecurity skills through challenges in web security, cryptography, forensics, and more. Open to students, professionals, and enthusiasts of all experience levels.
Registration openMathura · Tech · intermediate · ctf, cybersecurity, web-security
A national CTF cybersecurity competition in Mathura featuring online and on-site rounds. Participants solve challenges in web security, cryptography, forensics, and reverse engineering to capture flags and demonstrate technical skills.
Registration openOnline · Tech · intermediate · ctf, cyber-security, cryptography
Lun4R CTF 2026 is a free cybersecurity competition with online qualifiers and offline finals for students and enthusiasts. Teams solve challenges in cryptography, forensics, and web security to win a ₹1 lakh cash prize.