The development and the use of big networks and Internet have created big openings in computer systems. The diversity of technologies, in particular computer software or components on Internet, makes the task more and more difficult.
E-business and its fields of application highlight the need for security. It is thus very important to look at security as a whole integrating the lower layers as well as operating systems, computer applications and human practices.
The awareness of potential threats in the different steps in modeling of a computer system is the reason why we propose the following two training courses.