Buffer Hack is an initiative promoted by students belonging to LibreLabUCM, the non-profit hacker student association of the Complutense University of Madrid that tries to promote free software, free culture and cybersecurity. At LibreLabUCM we believe that Free Culture is very important so that everyone grows and continues to develop. It is for this reason that we have organized an event with fully technical talks given by expert speakers and completely free assistance. You will have 9 hours of cybersecurity at the hands of great professionals in the sector such as Yago Hansen, David Marugán aka Radio Hacking, Guille Hartek from “Follow the White Rabbit”, Josep Moreno from “BitUp”, Alejandra Ventura from the INCIBE Intelligence Department and many others.