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CTF

CTF events

Capture The Flag competitions grouped by event. Open an event to browse its challenge writeups.

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10 / 10 items

CSCG

The CSCG is an annual german CTF competition that spans two months and serves as the qualifier for the DHM, serving as the qualifier for selecting the German team for the ECSC.

6 writeups 34 min read

GPNCTF

GPNCTF is an annual CTF competition hosted by KITCTF at the GPN chaos computer club event in Karlsruhe.

2 writeups 25 min read

SEKAICTF

SekaiCTF is an annual CTF competition, hosted by PROJECT SEKAI - a well known international CTF team. The competition itself is known for its sizable prize pools and for serving as a prequalifier for events like MaltaCTF and XCTF.

2 writeups 23 min read

KITCTF

KITCTF organizes the local IntroCTF @KIT every semester and the GPNCTF annually.

1 writeup 11 min read

SMILEYCTF

SmileyCTF is hosted by "America's #1 CTF team" named .;,;.

1 writeup 6 min read

UMDCTF

UMDCTF is an annual CTF competition hosted by the University of Maryland.

1 writeup 9 min read

FCSC

The FCSC is the French equivalent of the CSCG/DHM and serves as the qualifier for selecting the French team for the ECSC.

1 writeup 5 min read

EHAX

EHAX is an online 24-hour CTF competition hosted as part of Invictus DTU's mega tech fest in India.

2 writeups 15 min read

LACTF

LACTF is an annual american CTF competition hosted by ACM Cyber at UCLA.

1 writeup 5 min read

DVCTF

DVCTF is annualy held by DaVinciCode, the academic team of the École supérieure d'ingénieurs Léonard-de-Vinci in France.

1 writeup 4 min read