We provide services such as: * IT infrastructure audit which consists of assessing the risks of the information systems necessary for the operation of the applications. For example: Physical security, logical security, network security, back-up plan; * The audit of a computer application: who appreciates a computer application in production, for example a salary management application, a financial application, etc. Very often several areas are part of an audit of an application, in particular: operational data, basic data, the settings, interfaces between the application and other applications, management of access rights to the application