Patent ID: 8458784
Filing Date: 2013-06-04
Classification: H04L

Abstract:
1. A data protection system for filtering packets between at least an internet network and an internal network, wherein data is transmitted and received in the form of a plurality of packets, comprising: a first interface circuit for coupling packets to and from the internet network; a second interface circuit for coupling packets to and from the internal network; a filtering circuit coupled between the first interface circuit and the second interface circuit; wherein, as a packet is being received and transmitted between the first and second interface circuits, the packet is simultaneously subjected to one or more filtering criteria by the filtering circuit, wherein an end portion of the packet is selectively altered by the filtering circuit based on the filtering criteria, wherein the packet is selectively altered to be invalid if a determination has not been made as to whether the packet is valid or invalid by the time the end portion of the packet is received.