About
Who we are
A student Capture The Flag team from Chennai, competing since 2025.
Competition and collaboration
We compete in online and college CTFs, working together to solve security challenges and learn from each competition.
Alongside competing, we develop challenges and organise events with Cyventura, the cybersecurity club at Velammal Engineering College. Our events include AKIRA CTF and Aazhi CTF 2026.
Our name comes from high-resolution, lossless audio and reflects the attention to detail we bring to our work.
At a glance
- Team
- Student Capture The Flag team
- Based in
- Chennai, Tamil Nadu, India
- Competing since
- 2025
- Categories
- Web, reverse engineering, cryptography, forensics and OSINT
- CTFtime ranking (2026)
- #46 in India · #475 worldwide
- Online CTF results
- 4 recent results on CTFtime
- Top captures
- 12, including 3 wins
- CTFs organised
- AKIRA CTF and Aazhi CTF 2026
- Members
- 17 on our CTFtime roster
Questions
What is HiRes Lossless?
HiRes Lossless is a student Capture The Flag (CTF) team from Chennai, India, competing since 2025. We play online CTFs listed on CTFtime and college CTFs across Tamil Nadu and Kerala, covering web, reverse engineering, cryptography, forensics and OSINT, and we build challenges and organise events with Cyventura at Velammal Engineering College.
How is HiRes Lossless ranked?
In the 2026 season HiRes Lossless is ranked #46 in India and #475 worldwide on CTFtime, with 165.07 rating points. The team has 12 top captures (1st, 2nd or 3rd place) at college CTFs, including 3 wins at Digital University Kerala (DUK) and Arunai Engineering College and Rajalakshmi Institute of Technology.
Which CTFs has HiRes Lossless organised?
HiRes Lossless has organised AKIRA CTF and Aazhi CTF 2026 with Cyventura, the cybersecurity club at Velammal Engineering College. AKIRA CTF was an on-campus jeopardy CTF for Velammal Engineering College students, and Aazhi CTF 2026 was an inter-college jeopardy CTF open to students from other colleges.
Maintained by the HiRes Lossless team · Updated · Rankings, results and roster from CTFtime