A security device comprising - a security element , which comprises a substrate , in which a three-dimensional pattern with structures such as cracks, grooves, flaking, pits, scales, elevations and/or shrinkages, are embedded as static or dynamic security feature, - a scanning device for capturing an image of the security element or a part thereof, - a storage device for storing the image of the security element captured with the scanning device at an authentication point of time, whereby additionally a material that is detectable via the scanning device or a material composition, deposited or embedded in or on the three-dimensional pattern embedded in the substrate and, if necessary, on the security element newly applicable or removable, whereby the colour, the intensity, the structure, the layer thickness, individual pigments or other physical property of the substrate and/or the three-dimensional pattern of the security element , embedded therein, are changed, so that at least a partially altered appearance is obtained which is detectable during an authentication point of time by the scanning device and is storable in the storage device, wherein the substrate of the security element is restricted by a fluorescent layer having fluorescent particles , integrated therein or an arbitrarily fluorescent dye, as an additional security feature, wherein the intensity, as captured by the scanning device, the shape, the arrangement or any other characteristic of the fluorescent particles or of the fluorescent dye of the fluorescent layer are influenced by the configuration or the structure of the pattern in the substrate and/or the colour, the intensity, the structure, the layer thickness or other characteristic of the substrate. - a security element , which comprises a substrate , in which a three-dimensional pattern with structures such as cracks, grooves, flaking, pits, scales, elevations and/or shrinkages, are embedded as static or dynamic security feature, - a scanning device for capturing an image of the security element or a part thereof, - a storage device for storing the image of the security element captured with the scanning device at an authentication point of time, whereby additionally a material that is detectable via the scanning device or a material composition, deposited or embedded in or on the three-dimensional pattern embedded in the substrate and, if necessary, on the security element newly applicable or removable, whereby the colour, the intensity, the structure, the layer thickness, individual pigments or other physical property of the substrate and/or the three-dimensional pattern of the security element , embedded therein, are changed, so that at least a partially altered appearance is obtained which is detectable during an authentication point of time by the scanning device and is storable in the storage device, wherein the substrate of the security element is restricted by a fluorescent layer having fluorescent particles , integrated therein or an arbitrarily fluorescent dye, as an additional security feature, wherein the intensity, as captured by the scanning device, the shape, the arrangement or any other characteristic of the fluorescent particles or of the fluorescent dye of the fluorescent layer are influenced by the configuration or the structure of the pattern in the substrate and/or the colour, the intensity, the structure, the layer thickness or other characteristic of the substrate. <EOS>