Ars Technica reports on newly developed malware capable of communicating between devices not connected to any active networks. The malware now threatens the “air gap” often used to protect data, the report states. Researchers were able to use the built-in microphones and speakers within PCs to establish communication via inaudible audio signals within a distance of 65 feet. The proof-of-concept software has been outlined in the Journal of Communications. In the report, the researchers said, “The concept of a covert acoustical mesh network renders many conventional security concepts useless, as acoustical communications are usually not considered.”
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