Patent ID: 7814327
Filing Date: 2010-10-12
Classification: G06F,G06Q

Abstract:
1. A computer-implemented method comprising: maintaining a plurality of stored signatures in a data storage device, each signature being associated with one of a plurality of registered documents; intercepting packets being transmitted over a network between a source and a destination; reassembling the packets into an intercepted complete flow, wherein the intercepted complete flow represents an ordered data stream of a communication between the source and the destination; extracting a reassembled object from the intercepted complete flow to determine a content type of the reassembled object; calculating a set of signatures associated with the reassembled object; and comparing the set of signatures associated with the reassembled object with the plurality of stored signatures to determine if the reassembled object contains content associated with a registered document, wherein each registered document is associated with a user that requested registration of the document, the user being alerted if an attempt to transmit the registered document over a network is made.