NUS Greyhats Welcome CTF 2025

August 16-17, 2025 | Singapore Time (SGT)

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About Welcome CTF

Welcome CTF is an annual CTF organized by NUS Greyhats at the start of every academic year to give students a feel for some of the technical skills that make up the cybersecurity industry. We hope to be able to inspire students to discover a newfound interest in cybersecurity!

Form teams of up to 4 members and sign up now! Click here to join the Discord to stay updated!

🏆 Prizes

👕
Top 3 Teams

Exclusive Greyhats T-Shirt + Sticker Set

🏷️
4th - 10th Place

Exclusive Greyhats Sticker Set

📋 Rules

  • 🚫 No cheating. No discussion or sharing flags across teams.
  • 🏆 Participants that have won in past years are not entitled to the prizes if they win again.
  • 🧠 Use common sense.
  • 🎉 Have fun and learn something new!