For many years now, the digital environment has played an increasingly important role in most organizations. Production processes, customer relationship management, the working environment: almost everything is now controlled by IT.The benefits of IT also come with their share of risks, with possible failures that could jeopardize all or part of the company (breakdowns, malicious attacks, bad practices that could cause data leaks, etc.).In this respect, and to guard against possible faults, the information system can be inspected. The aim of the audit is to verify practices, equipment and data storage (internal and external).