In its “Computer Threat Overview”, the National Information Systems Security Agency (ANSSI) reviews the major trends that have marked the cyber landscape in 2021 and highlights the risks of short-term development. While the generalization of digital uses – often poorly controlled – continues to represent a challenge for companies and administrations, the agency observes a constant improvement in the capacities of malicious actors. Thus, the number of proven intrusions into information systems reported to ANSSI increased by 37% between 2020 and 2021 (786 in 2020 compared to 1082 in 2021, i.e. now nearly 3 proven intrusions per day).