Bergkamp10 writes: Australia's University of Technology in Queensland (QUT) has created a groundbreaking new system that can detect invisible intruders on wireless LANs. Wireless networks have been almost impossible to thoroughly secure as they possess no clearly defined boundaries, instead they are defined by the quality and strength of the receiving antenna. QUT Information Security Institute researcher Dr Jason Smith has invented a new system to detect eavesdropping on unencrypted networks or active hijackings of computer sessions when a legitimate user who is logged onto the network leaves the connection. Smith has created a series of monitoring techniques that when used together can detect both attackers and configuration mistakes in network devices. According to Smith, ""the strength of the signal travelling in a wireless network and the round trip time of the signal are both monitored because they will change if an intruder enters the network. Separately monitoring the signal and round trip time is unreliable, but correlating them against each other makes the system accurate," he said. Smith goes on to list further features and benefits of the new system and how threats can be responded to.
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