A magnetic unlocking system, including: - a system (10,80) protecting against the theft of a packaged or unpackaged article, the system comprising two parts (14, 30; 14, 82) locked to each other by axial insertion of a spike of a first part in an orifice of a second part (30; 82) that includes means for locking the inserted spike, - a device for magnetically unlocking the protection system that includes: • a casing enclosing at least one permanent magnet (4, 5, 6), • an unlocking surface provided with means for reception and mechanical stabilization of the system, said means being designed to receive at least the second part of the system (10, 80) and to stabilize it in a predetermined orientation, said predetermined orientation enabling the magnetic field that is generated by said at least one permanent magnet, perpendicularly to the unlocking surface, to unlock magnetically the two parts of the protection system, - the receiving and mechanical stabilization means defining a central housing to receive at least the second part (30; 82) of the protection system, the shape of said housing being substantially complementary to that of said at least second part of the protection system, characterized in that the second part has at least one opening separate from the orifice for receiving the spike of the first part and retaining it there so as to be able to raise the two parts of the system holding only the first part. - a system (10,80) protecting against the theft of a packaged or unpackaged article, the system comprising two parts (14, 30; 14, 82) locked to each other by axial insertion of a spike of a first part in an orifice of a second part (30; 82) that includes means for locking the inserted spike, - a device for magnetically unlocking the protection system that includes: • a casing enclosing at least one permanent magnet (4, 5, 6), • an unlocking surface provided with means for reception and mechanical stabilization of the system, said means being designed to receive at least the second part of the system (10, 80) and to stabilize it in a predetermined orientation, said predetermined orientation enabling the magnetic field that is generated by said at least one permanent magnet, perpendicularly to the unlocking surface, to unlock magnetically the two parts of the protection system, • a casing enclosing at least one permanent magnet (4, 5, 6), • an unlocking surface provided with means for reception and mechanical stabilization of the system, said means being designed to receive at least the second part of the system (10, 80) and to stabilize it in a predetermined orientation, said predetermined orientation enabling the magnetic field that is generated by said at least one permanent magnet, perpendicularly to the unlocking surface, to unlock magnetically the two parts of the protection system, - the receiving and mechanical stabilization means defining a central housing to receive at least the second part (30; 82) of the protection system, the shape of said housing being substantially complementary to that of said at least second part of the protection system, characterized in that the second part has at least one opening separate from the orifice for receiving the spike of the first part and retaining it there so as to be able to raise the two parts of the system holding only the first part.