NATIONAL LEVEL 24-HOURS CONTINUE HACKATHON
October 31 - November 1, 2025
24 Hours of Cryptic Challenges
KPR Institute of Engineering and Technology
Coimbatore, Tamil Nadu
₹60,000+
Certificates & Goodies
Inspired by the legendary Cicada 3301 puzzles, CICADA'25 is ACM's most challenging cryptographic event. Participants will navigate through layers of encryption, steganography, and complex algorithms to uncover hidden messages and solve intricate puzzles.
This isn't just a competition—it's a journey into the depths of cybersecurity, cryptography, and problem-solving. Only the most dedicated and skilled participants will reach the final challenge.
Download the comprehensive rules and guidelines document
Have questions about CICADA'25? We're here to help.
Ready to test your skills against the most cryptic challenges? Register now and become part of the CICADA'25 legend.
Registration closes on October 25, 2025