It is possible for any common network router to secretly leak sensitive information such as employee passwords or company data, according to recent research from experts at Ben-Gurion University of the Negev (BGU) Cyber Security Research Center (CSRC). In a research paper published by the university, researchers explained how they used the LED light on a network router to covertly send data. Using a proprietary form of malware, the team was able to override the router and control the LED that is traditionally used to convey the status of the device, a BGU press release said.
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ORIGINAL SOURCE: Tech Republic