Security system, particularly for valuable documents

The invention relates to a security system, in particular for documents of value, in which a safety element is provided in a support plane, that in a holographic way outside the carrier plane a pattern reconstructed under light incidence in which a hidden information is stored, and with a flat, transparent verification element, the at face contact of the security element makes the information stored therein can be read out. Furthermore, the invention relates to a security element and a verification element for use in the security system and a document of value, which is equipped with the safety system. In addition, the invention provides an apparatus and a method for reading the concealed information that is stored in the holographically reconstructed under light incidence on the security element pattern relates.