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When heat from one computer is emitted and detected by an adjacent computer, a channel can be opened that researchers are claiming can facilitate the spread of keys, passwords and even malware. According to researchers from the Cyber Security Research Center at Ben Gurion University in Israel, the bridge, something they’ve dubbed BitWhisper, can allow for communication between the two air-gapped machines. Researchers Mordechai Guri and Matan Munitz discovered the method and were overseen by Yuval Elovici, a professor at the school’s Department of Information Systems Engineering. The three plan
AIR-GAPPED SYSTEMS, WHICH are isolated from the Internet and are not connected to other systems that are connected to the Internet, are used in situations that demand high security because they make siphoning data from them difficult. Air-gapped systems are used in classified military networks, the payment networks that process credit and debit card transactions for retailers, and in industrial control systems that operate critical infrastructure. Even journalists use them to prevent intruders from remotely accessing sensitive data. To siphon data from an air-gapped system generally requires p