/ˌsiːˈtiː ˈfɒr/ or /ˌsiːˈtɛf/ (SEE-tee FAWR or SEE-TEF)

Definitions

1. noun

An event or competition in which participants solve puzzles, challenges, or problems, often related to computer security or cryptography, to earn points or prizes.

“The company hosted a ctf to attract cybersecurity talent and promote innovation in the field.”

2. abbreviation

Capture the Flag, a type of multiplayer game or competition where players must capture and defend flags or secrets.

“The team participated in a ctf tournament and managed to capture the opposing team’s flag.”