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CTFd


https://ctfd.io/
New York City (NYC / New York, NY)

The Easiest Capture The Flag Platform

"Capture The Flag (CTF) competitions have been used in the computer security community for education and evaluation objectives for over a decade. These competitions are often regarded as excellent approaches to learn deeply technical concepts in a fun, non-traditional learning environment..."

  • Learning Obstacles in the Capture The Flag Model by Kevin Chung and Julian Cohen, NYU Polytechnic School of Engineering

Status: Active
Last Modified: 3/23/2026
Added on: 1/8/2026

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