An improved file access controller for a data processing system, and a method for the use thereof, and more particularly, an improved front end system for a file access control system, is described. The improvement is particularly useful for security audits and system maintenance of the file access controller. The improvement comprises an apparatus and method for effecting the steps of retrieving data describing authorized users which is stored within the file access controller, acquiring data describing users which is obtained from at least one other file system, comparing and sorting user data retrieved from the controller with user data obtained from the other file system so as to detect any mismatched data, resolving at least a portion of any mismatches by updating user data from the controller with data obtained from the other file system, combining the matched data and updated data and recording the combined data within the file access controller, and reporting any detected mismatched and non-updated data describing users.