A method for verifying an authenticity of an identity document , said method being performed by a scanner comprising a slot for receiving the identity document , a casing , a first light source capable of generating white light, a second light source capable of generating Ultra Violet, UV, light arranged as two light sources, a third light source capable of generating Infra Red, IR, light, wherein the light sources are arranged inside the casing , and a camera for acquiring images, said method comprising: detecting , by means of the camera , presence of the identity document in the slot of the scanner , wherein detecting the presence of the identity document in the slot of the scanner comprises illuminating the slot with white light, turning the camera into a filming mode and comparing the filmed images with a reference image, acquiring , by means of the camera , a first image of the identity document when it is illuminated with white light, acquiring , by means of the camera , a second image of the identity document when it is illuminated with UV light, acquiring , by means of the camera , a third image of the identity document when it is illuminated with IR light, encrypting each acquired image to generate encrypted images, sending a first message comprising a request for verifying the authenticity of the identity document together with the encrypted images to an analyze server , receiving , from the analyze server , a second message comprising a verification report generated at the analyze server, the second message including textual information extracted from the identity document , sending a first signal to an indicating means , said first signal indicating the state of the authenticity of the identity document as specified in the received verification report, and sending the textual information to a Point of Sale, POS, system in response to that the identity document has been verified. detecting , by means of the camera , presence of the identity document in the slot of the scanner , wherein detecting the presence of the identity document in the slot of the scanner comprises illuminating the slot with white light, turning the camera into a filming mode and comparing the filmed images with a reference image, acquiring , by means of the camera , a first image of the identity document when it is illuminated with white light, acquiring , by means of the camera , a second image of the identity document when it is illuminated with UV light, acquiring , by means of the camera , a third image of the identity document when it is illuminated with IR light, encrypting each acquired image to generate encrypted images, sending a first message comprising a request for verifying the authenticity of the identity document together with the encrypted images to an analyze server , receiving , from the analyze server , a second message comprising a verification report generated at the analyze server, the second message including textual information extracted from the identity document , sending a first signal to an indicating means , said first signal indicating the state of the authenticity of the identity document as specified in the received verification report, and sending the textual information to a Point of Sale, POS, system in response to that the identity document has been verified. <EOS>