Patent ID: 7103915

Claim:
A method for securing data in a computer network having a plurality of computers interconnected together, one of said plurality of computers designated as a data input computer and each of said plurality of computers having a memory therein, a plurality of memories respectively designated as a remainder store and a plurality of extract stores in others of said plurality of computers, comprising: establishing a group of security sensitive words, characters or icons for each of a plurality of security levels, each with a respective security clearance; filtering data input from said data input computer and extracting said security sensitive words, characters or icons for each security level from said data to obtain extracted data and remainder data; storing said extracted data in extract stores corresponding to respective security levels and said remainder data in said remainder store; and, accessing respective extract stores and permitting full or partial reconstruction of said data via said extracted data and remainder data only in the presence of a respective security clearance corresponding to a respective security level.