2025
UMDCTF 2025 was the 9th edition of a Capture The Flag event hosted by the University of Maryland UMD -...
2024
Intigriti keeps challenging us with XSS fun time, this time with a challenge by CryptoCat. I had a great time...
2023
Intigriti brings us monthly web challenge with really interesting problems. The Challenge This challenge was mostly the same of the...
SekaiCTF is a Capture The Flag event hosted by Team Project Sekai, with some hardcore members of CTF Community. Web...
corCTF is maintained by the Crusaders of Rust Team. The 2023 edition happened between 28 and 30-JUL. This is a...
UTCTF is maintained by the Information & Systems Security Society at the University of Texas at Austin. Since I’m not...
2022
RCTF 2022 is a Jeopardy-style Online Capture The Flag Competition presented by ROIS（Researcher Of In-formation Security). The Champion Team of...
Tive o grande prazer de participar do evento de segurança BHack 2022 e ajudar na organização do CTF, incluindo a...
This is the 3rd edition of WeCTF and this is the only CTF I’m following since the begining - because...
SEETF is a cybersecurity Capture the Flag competition hosted by the Social Engineering Experts CTF team. Altough the name is...
O justCTF foi organizado pelo time just Cat The Fish e inclui as categorias mais comuns de desafios, incluindo alguns...
This was the first edition of TSJ CTF and it was great! There was a lot of hardcore Web Challenges,...
2021
The first edition of idekCTF brought some really nice and creative web challenges. We solved almost all of the web...
INTENT Security Research Summit 2021 was founded by security companies CyberArk and Checkmarx and is focused on security research. I...
Hack.lu CTF was a great surprise for me as a never heard about it before. And it’s rated 94.98! It...
ASIS CTF is a heavyweight CTF happening since 2013. The Rating weight on CTFTime for this event is currently 89.22,...
This was the second edition of the Really Awesome CTF, organized by a group of UK students, with a shared...
UIUCTF CTF is hosted by the Special interest Group for Computer Security: SIGPwny - at the University of Illinois in...
redpwnCTF 2021 is the 3rd edition of a cybersecurity competition hosted by the redpwn CTF team, with some very creative...
Hack-a-Sat is a hardcore CTF focused on Satellite Hacking, which is awesome! I didn’t had much time to work on...