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 · advanced · cyber-security, ai, ctf
A competitive cybersecurity challenge testing skills in securing AI systems through scenarios like prompt injection, LLM jailbreaking, and agentic AI attacks. Designed for ethical hackers, students, and security professionals to prove offensive security capabilities.
Registration openBangalore · Tech · ctf, cyber-security, offensive-security
An offline jeopardy-style CTF competition for undergraduate engineering students in India. Teams of up to four solve offensive and defensive security challenges on a live leaderboard using their own laptops.
Registration openChennai · Tech · intermediate · ctf, cyber-security, digital-forensics
A 6-hour cybersecurity competition in Chennai where teams solve real-world security challenges in domains like reverse engineering, forensics, and web exploitation. Open to beginners through advanced participants working in teams of up to two.
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.
Kothamangalam · Tech · intermediate · hackathon, defence-technology, cyber-security
A 36-hour national hackathon by IEDC MACE focused on defence technology, cyber security, and humanitarian solutions. Open to student innovators across India to build prototypes addressing peace and security challenges.
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.
Registration openOnline · Tech · beginner · ctf, cyber-security, web-security
A 3-hour online and offline Jeopardy-style CTF testing offensive security skills in web exploitation, OSINT, cryptography, and forensics. Open to students and professionals forming teams of 1-3 members.