Code of Conduct

We expect all the participants, the sponsors, the partners and the GreHack staff to know and follow this Code of Conduct. These rules apply to the GreHack conference, CTF, workshops venues and related social events. If a participant does not respect this code of conduct, the GreHack staff may take any action they deem appropriate. This includes a warning, expulsion from the event with no refund (if applicable), or reporting their behavior to the local law enforcement.

Expected behaviors

Expected behavior of attendees include, but is not limited to, the following:


Participants asked to stop any harassing behavior are expected to comply immediately. Harassment includes offensive verbal comments related to gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, nationality, or religion, sexual images in public spaces, deliberate intimidation, stalking, following, photography or audio/video recording against reasonable consent, sustained disruption of talks or other events, inappropriate physical contact, and unwelcome sexual attention. As this is a security challenge, we would like to note that the hacks created during the Capture the Flag contest are equally subject to the anti-harassment policy. Sponsors and partners are also subject to the anti-harassment policy. In particular, sponsors should not use sexualized images, activities, or other material. Sponsor representatives (including volunteers) should not use sexualized clothing/uniforms/costumes, or otherwise, create a sexualized environment. If you are being harassed or if you notice that someone else is being harassed, or have any other concerns, please contact any member of GreHack staff immediately. GreHack staff will be willing to help participants contact any local security or local law enforcement, provide escorts, or otherwise assist those experiencing harassment to feel safe for the duration of the event. We value your attendance.

Photography and Video

Picture of a large group of people is forbidden as well as photography without explicit permission. Each time a photo is taken, the photograph must get (at least) an informal acknowledgment from the people appearing in the picture. Otherwise, the participants must be given a reasonable chance to opt out from being photographed. It is inappropriate to take a picture in contexts where people have a reasonable expectation of privacy (in bathrooms or where participants are sleeping). If any participant objects to the taking of their picture, the picture must be deleted immediately. Unless stated otherwise, the speakers accept to be photographed and filmed during their talks. We intend to film the talks during the GreHack conferences in order to make these videos publicly available. The camera will only focus speakers. As this camera should be clearly visible and identifiable, we expect from people who do not want to be filmed not to walk in front of the camera, otherwise, it may be interpreted as an informal acknowledgment.