A latch in particular for a lock mechanism of a motor vehicle, comprising a stator extending according to a main axis and housing an intermediate stator , - said intermediate stator housing a rotor movable in rotation according to the main axis and configured to movably drive a control means , - the rotor comprising coding members configured to keep the rotor secured in rotation with the intermediate stator and configured to release the rotation of the rotor relative to the intermediate stator upon introduction of a key insert compliant with the coding into the longitudinal housing of the rotor , - the intermediate stator comprising • a front portion cooperating with the coding members , • a rear portion movable between a release position in which the rear portion enables the rotation of the rotor and a blocking position in which the rear portion rotatably blocks the rotor , • a central portion disposed between the front portion and the rear portion , • a first fusible area disposed between the central portion and the rear portion , and • a second fusible area disposed between the front portion and the central portion , said first fusible area being adapted to break up in a first angular position (P0) of the intermediate stator , when the torque exerted on the intermediate stator by an element non-compliant with the coding on the rotor in the rotatably secured state, reaches a first predetermined torque lower than the breakage torques of the coding members and of the second fusible area so that, when the first fusible area is broken, the rear portion is displaced toward its rotor blocking position. - said intermediate stator housing a rotor movable in rotation according to the main axis and configured to movably drive a control means , - the rotor comprising coding members configured to keep the rotor secured in rotation with the intermediate stator and configured to release the rotation of the rotor relative to the intermediate stator upon introduction of a key insert compliant with the coding into the longitudinal housing of the rotor , - the intermediate stator comprising • a front portion cooperating with the coding members , • a rear portion movable between a release position in which the rear portion enables the rotation of the rotor and a blocking position in which the rear portion rotatably blocks the rotor , • a central portion disposed between the front portion and the rear portion , • a first fusible area disposed between the central portion and the rear portion , and • a second fusible area disposed between the front portion and the central portion , said first fusible area being adapted to break up in a first angular position (P0) of the intermediate stator , when the torque exerted on the intermediate stator by an element non-compliant with the coding on the rotor in the rotatably secured state, reaches a first predetermined torque lower than the breakage torques of the coding members and of the second fusible area so that, when the first fusible area is broken, the rear portion is displaced toward its rotor blocking position. • a front portion cooperating with the coding members , • a rear portion movable between a release position in which the rear portion enables the rotation of the rotor and a blocking position in which the rear portion rotatably blocks the rotor , • a central portion disposed between the front portion and the rear portion , • a first fusible area disposed between the central portion and the rear portion , and • a second fusible area disposed between the front portion and the central portion , <EOS>