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AndyGreek1

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He's Back... The Air Gap Computer Hack

 
Researchers at the Ben-Gurion University of the Negev (BGU) Cyber Security Research Center have discovered that virtually any cellphone infected with a malicious code can use GSM phone frequencies to steal critical information from infected “air-gapped” computers.

Air-gapped computers are isolated -- separated both logically and physically from public networks -- ostensibly so they cannot be hacked over the Internet or within company networks.


Led by BGU Ph.D. student Mordechai Guri, the research team discovered how to turn an ordinary air-gapped computer into a cellular transmitting antenna using software that modifies the CPU firmware. GSMem malicious software uses the electromagnetic waves from phones to receive and exfiltrate small bits of data, such as security keys and passwords...

This is the third threat the BGU cyber team has uncovered related to what are supposed to be secure, air-gapped computers. Last year, the researchers created a method called Air-Hopper, which utilizes FM waves for data exfiltration. Another research initiative, BitWhisper, demonstrated a covert bi-directional communication channel between two close-by air-gapped computers using heat to communicate. more

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