1. A method of filtering and securing data having one or more security sensitive words, characters or data objects in a computer system, said adaptive filter used in conjunction with a compilation of additional data, the method comprising: identifying said security sensitive words, characters or data objects in said compilation of additional data; retrieving at least one of contextual, semiotic and taxonomic words, characters or data objects from said compilation of additional data related to said security sensitive words, characters or data objects; compiling a filter with said security sensitive words, characters or data objects and the retrieved data related to said security sensitive words, characters or data objects; and extracting with said filter said security sensitive words, characters or data objects and said retrieved data to obtain extracted data and remainder data therefrom.