Chronos SecurityChronos Security
Competition Ended

Chronos Security Capture The Flag 2025

Join Romania's premier cybersecurity competition featuring real-world challenges across multiple domains.

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Competition has ended

Thank you to all 550+ participants from around the world!

550+ Participants

International competitors

€8,000+ Prizes

Total prize pool

7 Partners

Educational partners

5 Sponsors

Supporting organizations

Competition Arsenal

Over 60 challenges across multiple categories:

WebLinuxForensicsProgrammingCryptographyReverse EngineeringPwnOSINTMisc

Explore Our CTF History

Review Past Competitions

Discover the evolution of Chronos Security CTF competitions. From our inaugural event in Sibiu to international competitions reaching hundreds of participants worldwide.

View All Competitions

Competition Strategies

Time Management

  • Start with easier challenges to build momentum
  • Allocate time across different categories
  • Take breaks to maintain focus during 48h
  • Don't get stuck on one challenge too long

Team Strategy

  • Assign members to their strongest domains
  • Share findings and collaborate actively
  • Use voice chat for real-time coordination
  • Avoid working on same challenge simultaneously

Essential Tools

  • Burp Suite / OWASP ZAP for web challenges
  • Ghidra / IDA for reverse engineering
  • Wireshark for network forensics
  • Python/CyberChef for crypto & scripting