A can, in particular a beverage can, comprising a body, in particular made from aluminium, wherein a closure region on an end wall of the can is at least partially delimited by a predetermined breaking edge and wherein the can comprises an opening element, in particular an annular loop, which in the starting position thereof lies at least partially flat against the end wall of the can and is connected to the end wall at at least one position by means of a connecting element, which is formed as part of the opening element and is connected with the end wall, - wherein on lifting or pivoting the opening element upwards away from the end wall of the can, thus out of the starting position into the opening position, the closure region is torn off at the predetermined breaking edge and the can is designed for the emptying of the contents thereof in the region of the opening of the can bounded by the predetermined breaking edge, - wherein the opening element of the can also comprises an annular carrier body that is closed in itself, and is preferably designed as such per se, which consists entirely, or in a subregion, of an electrically conductive material, in particular a metal, and forms a ring, electrically closed in itself, in the above-mentioned starting position of the opening element, and - on or in which carrier body, are arranged an antenna and a transponder chip connected to same, characterised in that, - under the external influence of an alternating magnetic field, emitted for example by an external data communication device, by means of which currents can be induced in the carrier body in the starting position at a magnitude by means of which said externally acting alternating magnetic field can be weakened in such a way that the electrical voltage induced thereby is too low to activate the transponder chip and such an activation does not result or is prevented, - in that after lifting or pivoting the opening element/carrier body upwards from the end wall of the can in the course of opening same, the electrical ring closure in the carrier body can be irreversibly altered, in particular interrupted, and thus cancelled, such that the current induced in the carrier body by the externally acting alternating magnetic field can no longer be formed with a sufficient degree of strength and/or distribution for the above-mentioned prevention of the actuation of the transponder chip. - wherein on lifting or pivoting the opening element upwards away from the end wall of the can, thus out of the starting position into the opening position, the closure region is torn off at the predetermined breaking edge and the can is designed for the emptying of the contents thereof in the region of the opening of the can bounded by the predetermined breaking edge, - wherein the opening element of the can also comprises an annular carrier body that is closed in itself, and is preferably designed as such per se, which consists entirely, or in a subregion, of an electrically conductive material, in particular a metal, and forms a ring, electrically closed in itself, in the above-mentioned starting position of the opening element, and - on or in which carrier body, are arranged an antenna and a transponder chip connected to same, - under the external influence of an alternating magnetic field, emitted for example by an external data communication device, by means of which currents can be induced in the carrier body in the starting position at a magnitude by means of which said externally acting alternating magnetic field can be weakened in such a way that the electrical voltage induced thereby is too low to activate the transponder chip and such an activation does not result or is prevented, - in that after lifting or pivoting the opening element/carrier body upwards from the end wall of the can in the course of opening same, the electrical ring closure in the carrier body can be irreversibly altered, in particular interrupted, and thus cancelled, such that the current induced in the carrier body by the externally acting alternating magnetic field can no longer be formed with a sufficient degree of strength and/or distribution for the above-mentioned prevention of the actuation of the transponder chip.