METHOD FOR DETECTING AN ANOMALY IN AN ELECTRONIC SYSTEM IN OPERATION

The invention relates to a method (200) for detecting an anomaly in an electronic system in operation, in particular a cyber attack, the electronic system comprising processors that are each composed of hardware blocks, the processor being capable of executing an application (A) with the application interacting with the hardware blocks. The detection method comprises at least the following steps: - measuring (210), when the electronic system is in operation, at least one parameter representative of the interactions of the application with one of the hardware blocks; - comparing (220) each measurement with an associated reference dataset (J) to detect potential inconsistencies between the measurement and the reference dataset, the reference dataset being representative of the operation of the electronic system when no anomalies are present; and - sending (230) an alert according to an alert criterion relating to the one or more detected inconsistencies.