Abstract: Provided is a data carrier for a secure article that comprises a carrier body defining an extension direction, and at least one light emitting element being arranged in the carrier body. The carrier body comprises at least one light guiding element. The light emitting element is at least partially and preferably entirely arranged in the light guiding element. The light guiding element is configured to guide light being emitted from the light emitting element within the light guiding element and along a transverse direction extending perpendicularly to the extension direction. Other embodiments disclosed.