Created in 2022 by the associative Internet provider OpenGate of the ESIEESPACE association and the company SIFARIS, HackDay is the cybersecurity challenge open to all students from higher education.

The HackDay is divided into two major phases. The first is an online qualification stage, giving the first 25 qualified teams access to the final which will take place at ESIEE Paris.

Conferences led by IT security experts on various themes related to cybersecurity will precede the opening of the challenge final. The conferences are free and open to the public.