IT is omnipresent, yet all these systems might vulnerable. During the Securiosity symposium several speakers will hold a talk about what they do to prevent this. Part of this obviously is trying to break the system, to see if it contains any leaks.
Securiosity is the fourth symposium organized by SNiC (Foundation National Informatics Congress), this year it's in Nijmegen. Get your tickets at the A-Eskwadraat room.