CTF Handbook
Oct 15, 2024 · This guide was written and maintained by the OSIRIS Lab at New York University in collaboration with CTFd. In this handbook you'll learn the basics™ behind the methodologies and …
CTF for Beginners: How to Start Capture The Flag in 2026
Dec 8, 2025 · Capture The Flag (CTF) competitions are hands-on security challenges where you solve puzzles to find hidden "flags." They're how many security professionals first learned to hack, and …
picoCTF - CMU Cybersecurity Competition
picoCTF is a free computer security education program with original content built on a capture-the-flag framework created by security and privacy experts at Carnegie Mellon University.
Capture the flag (cybersecurity) - Wikipedia
In computer security, Capture the Flag (CTF) is an exercise in which participants attempt to find text strings, called "flags", which are secretly hidden in purposefully vulnerable programs or websites. …
What is CTF in hacking? Tips & CTFs for beginners by HTB
In a CTF game, you and several other hackers will be given a piece of software, a web application, a virtual machine, or a virtualized network as your target. Your objective is to find all of the hidden flags …
CTFtime.org / All about CTF (Capture The Flag)
"New Year CTF 2026" is publically votable. Dec. 31, 2025, 4:02 a.m. Team "4 ton slab of stone" added as an alias to "b01lers". Dec. 31, 2025, 4 a.m. Team "Goon Knights" added as an alias to "z0d1ak". …
Google CTF
What is the Google CTF? What is the prize? How does it work? Is GoogleCTF beginner-friendly? Where can I ask a question?
What is CTFs (Capture The Flag) - GeeksforGeeks
Jul 12, 2025 · A CTF stands for Capture the Flag, a game in which players put their skills to practice to solve problems or break into an opponent's system. Below are different types of CTFs -
Why Is Capture the Flag (CTF) Important in Cyber Security?
Apr 22, 2025 · What is Capture the Flag (CTF) in cyber security, and why is it a crucial practice? Learn how CTFs build ethical hacking skills, boost teamwork, and enhance threat detection.
CYBER.ORG Practice CTF
Welcome to the CYBER.ORG practice CTF! This site contains sample challenges for the Intermediate and High School divisions, and is designed to introduce students to the Jeopardy style CTF format.