Methods and Systems for Performing Lawful Interception (LI) in Communication Networks Involving Content Adulteration With Colluding Agents United States Patent

A method for lawful interception in a communication network involving adulteration by colluding agent is disclosed. The method includes activating, selectively, communication data duplication functionality in at least one of a plurality of network devices, each of the plurality of network devices being located in separate network segments of a communication path between users, the data duplication functionality duplicates data being communicated between the users; comparing, in real-time, a set of adulteration parameters derived from duplicated communication data received from the at least one of the plurality of network devices with associated thresholds within a set of thresholds to detect adulteration in the duplicated communication data; determining a confidence level of detecting adulteration in duplicated communication data received from the at least one of the plurality of network devices; and modifying number of network devices having active communication data duplication functionality based on the comparing and the confidence level.