Operation BLACK CIPHER 2026 is a national-level Capture The Flag and Cyber Warfare Championship organized by NullGrids Labs, the cybersecurity division of United Institute of Technology (UIT), Coimbatore, India. The competition is open to university students and cybersecurity enthusiasts across India, competing in teams of up to 4 members.
Challenge categories include Web Exploitation, Cryptography, Digital Forensics, OSINT, and Reverse Engineering — spanning beginner to advanced difficulty levels. This is a hybrid event with both on-site participation at UIT Coimbatore and online access for remote teams.
Our goal is to provide a rigorous, community-driven competition that challenges real skills and rewards creative thinking. All are welcome — whether you are a first-time CTF player or a seasoned competitor.