1. A data evaluation system comprising: at least one module, executing on one or more computer processors, to implement: a language and character set phase in which an authorized character set comprising authorized characters is defined; a document phase including receipt of an input document, the input document comprising document characters; a detection phase including a comparison of the document characters against the authorized characters in the authorized character set to detect unauthorized characters in the input document not forming part of the authorized character set; and a reporting phase including display of the unauthorized characters to a user.