Safety feature for data carriers, corresponding data and process for producing a security feature.

A security feature with a support (1) having an area (5) in which there are changes in the transparency of the media volume by a substance subsequently applied and hardened, by which is represented at least a first information, wherein the holder in at least a portion of this area further a relief (7) surface, characterized by surface relief is represented at least a second information or verification element optically active.