VALIDATION OF A V2X MESSAGE

In order to specify an improved method for validating a V2X message (3) sent by a transmitter (2) and received by a receiver (1) arranged on a vehicle, at least one actual physical received signal property of the V2X message (3) is determined, when the V2X message (3) is received, and a purported transmitter position (p2) of the transmitter (2) is determined from the V2X message (3). Local environment geodata, comprising a positioning a number of stationary objects (O1, O2, O3, O4), are provided, based on the purported transmitter position (p2) and taking into account the environmental geodata and the receiver position (P1), a signal path (x) of the V2X message (3) is simulated and at least one simulated physical received signal property is determined from the simulated signal path (x) and the receiver position (P1). The V2X message (3) is validated, if the at least one simulated physical received signal property differs from the at least one actual physical received signal property by less than a limit value (G)