Communication analysis method implemented in a first device designed to receive communication frames originating from a second device, the said first device and the said second device being designed to establish between them a communication within the framework of a secure communication session, the said method being such that, after opening of the said secure session between the first device and the second device, the said method comprises the following steps: - a step of storing parameters related to the communication established with the second device during the secure communication session, - an analysis step implemented on the reception of a communication frame originating from the second device and comprising an analysis of the parameters of the communication upon the reception of the communication frame with respect to the parameters stored for the said communication, - a step of determining a renewal or a maintaining of the secure communication session as a function of the analysis performed, the said method being characterized in that: - the analysis step is implemented according to a basic analysis mode or according to an advanced analysis mode and in that: - in the basic analysis mode the stored parameters of the communication comprise: - the frequency of reception of a communication frame originating from the second device, - the time-stamping of the last communication frame received, and - in the advanced analysis mode, the stored parameters of the communication comprise: - the type of data, - the position of the data in the communication frame, - the customary interval of the received data, - the number of distinct data in the communication frame. - a step of storing parameters related to the communication established with the second device during the secure communication session, - an analysis step implemented on the reception of a communication frame originating from the second device and comprising an analysis of the parameters of the communication upon the reception of the communication frame with respect to the parameters stored for the said communication, - a step of determining a renewal or a maintaining of the secure communication session as a function of the analysis performed, - the analysis step is implemented according to a basic analysis mode or according to an advanced analysis mode and in that: - in the basic analysis mode the stored parameters of the communication comprise: - the frequency of reception of a communication frame originating from the second device, - the time-stamping of the last communication frame received, and - in the advanced analysis mode, the stored parameters of the communication comprise: - the type of data, - the position of the data in the communication frame, - the customary interval of the received data, - the number of distinct data in the communication frame. - the frequency of reception of a communication frame originating from the second device, - the time-stamping of the last communication frame received, and - in the advanced analysis mode, the stored parameters of the communication comprise: - the type of data, - the position of the data in the communication frame, - the customary interval of the received data, - the number of distinct data in the communication frame. - the type of data, - the position of the data in the communication frame, - the customary interval of the received data, - the number of distinct data in the communication frame.