Using software-generated radio signals, malware can encode sensitive information such as files, images, keylogging, biometric information, and encryption keys. The ability to exfiltrate data from air-gapped systems represents a significant threat to data security in sensitive environments.
With software-defined radio (SDR) hardware, and a simple off-the-shelf antenna, an attacker can intercept transmitted raw radio signals from a distance. This attack allows unauthorized access to sensitive information that would typically remain secure in air-gapped networks.
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