Abstract: A system and method for network file filtering to prevent identity theft or misuse by restricting access to files likely to contain sensitive data is disclosed. The file filtering process includes scanning at least one data file for density of a selected pattern. Files identified as containing the selected pattern may be further analyzed to determine the likelihood of the presence of sensitive information. The process may also include restricting access to files that are identified as likely to contain sensitive information.

Abstract: A system and method for network file filtering to prevent identity theft or misuse by restricting access to files likely to contain sensitive data is disclosed. The file filtering process includes scanning at least one data file for density of a selected pattern. Files identified as containing the selected pattern may be further analyzed to determine the likelihood of the presence of sensitive information. The process may also include restricting access to files that are identified as likely to contain sensitive information.

Abstract: A system and method for network file filtering to prevent identity theft or misuse by restricting access to files likely to contain sensitive data is disclosed. The file filtering process includes scanning at least one data file for density of a selected pattern. Files identified as containing the selected pattern may be further analyzed to determine the likelihood of the presence of sensitive information. The process may also include restricting access to files that are identified as likely to contain sensitive information.

Abstract: The invention detects changes in one or more parameter values sent by a server through user space. In one embodiment, a Web server communicates with a client over the Internet. Before sending the parameter value or values to the client, the server performs a pre-processing step, creating a formatted data string. The server then transmits the formatted data string to the client in a URL or a cookie. When the client returns the formatted data string and other data to the server, the server performs a post-processing step to verify that the parameter value or values have not been tampered with. This round trip technique is a departure from approaches that merely detect tampering of data as it passes between two nodes of a network.

Abstract: A system and method for network file filtering. The file filtering process includes scanning at least one data file for density of a selected pattern. The process may also include restricting access to the file if the density of the selected pattern in the data file is greater than or equal to a threshold density.

Abstract: An image correlation device utilizing the principle of magnetoresistance. A sensed image is compared to a preselected mask image to determine whether the two images match. The comparison is accomplished by electrically representing the sensed image along a first surface and the mask image along a second surface of magnetoresistive member or body of material (a magnetoresistive member is one which demonstrates a greater amount of electrical resistance transverse to a magnetic field to which the member is exposed than it does parallel to that field). Where the two images match such that there is a maximum number of corresponding points along these surfaces a maximum amount of current flows through the body. Moreover, matching images can be compared and a match recognized even where the images are at different positions along their respective top and bottom surfaces of the magnetoresistive block.