The invention relates to an optically variable security attribute for documents, securities, bank notes, packaging and goods.The task of the invention is to provide an optically variable security attribute with covert detectable characteristics to improve safety against counterfeiting. In accordance with the invention, the task is accomplished in an optically variable security attribute with diffractive structures consisting of an electrically conductive polymer and at least one support web (1), a protection layer (7), a lacquer layer (3) and a reflection layer (4) by the electrically conductive polymer being polyethylenedioxythiophene polystyrenesulfunate (PEDT/PSS).