13 July 2021 #

New set of challenges in Cryptanalysis

Here is a series of challenges to discover new types of hashes that you will generally encounter during pentests on Windows infrastructure. You will learn to recognize them in the outputs of the tools from the Impacket suite.

Thanks to Shutdown, Tidusrose and Podalirius for these challenges!

27 May 2021 #

New App-System challenges

New mitigations make memory corruption exploitation increasingly harder. Therefore, Hackers must prove again their ingenuity against them in order to bypass these protections, and obtain a shell.
Sharpen your app-system skills with this new series of challenges!

Big thanks to kikko, voydstack and nobodyisnobody for the development of these new challenges!

12 May 2021 #

Toulouse Hacking Convention 2021

We are pleased to announce the 5th edition of the Toulouse Hacking Convention !

Event will take place online, from June 11 to 13 2021.

We organized two different parts :

  • On June 11th, at 9 am : conferences and panels,
  • from June 12th to 13th : a Jeopardy style CTF with prizes to win !

Get your free tickets here : !

You can also contribute financially to our event, and get fancy THCon t-shirts and masks.

Follow us on Twitter for the latest news :

See you soon !

17 April 2021 #

FCSC 2021

Once again this year, the National Information Systems Security Agency (ANSSI) is back with the France Cybersecurity Challenge (FCSC) from April 23 at 3 p.m. to May 3 at 6 p.m.!

100% ANSSI Challenge, the individual CTF allows all players to test their skills in a wide variety of challenges, and perhaps join the national team that will represent France during the 2021 edition of the European Cybersecurity Challenge (ECSC), in Prague.

At the end of the competition, the best players (top 10 junior, top 10 senior and top 3 in Crypto, Reverse, Pwn, Web and Hardware) will be interviewed by our coaches in order to select Team France, which will defend its colors from September 28 to October 1, 2021 at the ECSC.

To try your luck and keep up to date with the latest information, join the FCSC discord server.

More information on the ANSSI website.

15 April 2021 #

Another new series of NodeJS challenges ! More and more NodeJS environments...

More and more NodeJS environments are emerging, but security is often overlooked. In this series, you will discover recent and realistic vulnerabilities in these environments.

Many thanks to Mhd_Root, voydstack and Podalirius for creating this set of challenges!

12 April 2021 #


The HeroCTF (3rd edition) is an online cybersecurity competition open to all, organized by students from IUT de Vannes and ESNA.
This CTF is aimed at beginner to intermediate players, but whatever your level you will certainly find something to please you!

There will be something for everyone with categories like: Blockchain, Cryptography, Forensics, Misc, OSINT, Programming, Pwn, Reverse, Steganography, System and Web.

You can now register your teams of 4 players at and aim for the top to try to win prizes!

Start : Friday 23 april - 9 p.m
End : Sunday 25 april - 11 p.m

More information on the Twitter and the Discord of the event.

7 April 2021 #

Midnight Flag CTF

Time travel doesn’t scare you?
Are you a student and want to participate in a beginner / intermediate level CTF?
So do not wait any longer! Prepare your crew of 4 and fasten your seatbelts!
A ticket is waiting for you at this address:

Whoami? A group of students from ESNA from Bretagne passionate about infosec.
Pwd? Somewhere in space time.
Date? the night of Saturday April 10 from 8:30 p.m. to 6 a.m.
Locate? Online

More information on the Twitter and on the Discord of the event!

26 March 2021 #

New WebAssembly challenges

PNGYou like Web? You like Reverse? We got you covered with these new challenges!
The first challenge will introduce to WebAssembly, while the second will put you in the shoes of a hero in a RPG, challenging you to find the right NPC.

Many thanks to Cyxo for those 2 quality challenges!

26 March 2021 #

New set of challenges : Back to the future

The following challenges, submitted long ago in a galaxy far, far away, are now published:

Thanks Esad, Cyrhades, nqnt, govlog, Bernstein, lovasoa, HomardBoy for their more than reasonable patience.

There is something for everyone, happy hacking!

22 February 2021 #

New set of challenges : Node.js

You are certainly familiar with JavaScript, the language we are used to see client side. Well, JavaScript can be used server side!
Thanks to this series of challenges, you will learn to familiarize yourself with Node.

Thanks to Mhd_Root for his work on this series of challenges !