Skip to content


About us

Computer Security and Hacking

Development of new technologies thrown up new kinds of dangers for companies and end users. Most of time, attackers aim to gain full access on victim’s private systems, this operation is also known as “Be root” or “W00+”.

Attackers are then able to use the compromised system as their own. Consequences can be dramatic. Computer Security includes all the techniques, skills and methodologies to ensure the integrity of automated information systems of all kind, and protect them against threats.

What is “hacking”

Hacking can be defined as the passion of people which are looking for programs bugs, subvert systems, but also countermeasures for users versus risks and/or intrusions. It is also a willingness to share information publicly, and give to everyone the opportunity to understand, learn and participate in the development of new security technologies. In it’s core values, hacking works toward transparency.

What is The leHACK

Initiated in 2003 by a crew of people, who got together under the name of Hackerz Voice and inspired by the famous US hacking event named DEFCON. leHACK is one of the oldest French underground hackers’ event which bring together, professionals and amateurs of any skill level, around lectures and challenges. Regardless of their skill, guests come to share the latest advances in IT Security to assess and/or improve their level.

To improve quality and accessibility of this event, we are the host for many English-speaking conferences and workshops.

Started with only a bunch, the event never stopped growing up by gathering more and more people from amateurs to professionals. Each year we invite more french & international renowned speakers.

leHACK proves strong, totaling ~3500 participants each year


Educate the general public, giving everyone the means to understand, master the challenges and risks of a modern lifestyle incorporating in it new technologies.

Demystify techniques and secrets of the “pirates” to empower a rational and measured approach to issues of internet safety, provide the necessary elements, technical or otherwise, to protect themselves.

Participate to the protection and defense of internet services and software.

Disseminate knowledge of most advanced techniques outside restricted areas of the specialists.

We promote free exchange of information, and provide a useful platform for enthusiasts and professionals as security. Allowing professionals to exchange the latest advances in computer security. Bring together, enthusiasts and professionals, looking for advanced skills.

Our main purpose is to strive for better understanding and continuous improvement of security systems using new technologies.

Last News

Call for Papers has ended!

We received a large number of submissions, bear with us while we’re scooping across the stack!
We’ll update you on your submission status ASAP!

Thank you!


Early Birds had been raffled!

STANDARD TICKETS are still available but flying away, quick!


leHACK 2024 CFP is opened!

For the 20th year, leHACK will host a prestigious talk lineup.

Wether you are a security researcher, a hacker,a freak, or a unicorn, you can come on stage and share your unique knowledge with your pairs.

If you want to submit a talk for leHACK 2024, RTFM