air-gap

Submitted by Mordechai Guri on Wed, 29/06/2016 - 23:45

Fansmitter: Acoustic Data Exfiltration from (Speakerless) Air-Gapped Computers

Because computers may contain or interact with sensitive information, they are often air-gapped and in this way kept isolated and disconnected from the Internet. In recent years the ability of malware to communicate over an air-gap by transmitting sonic and ultrasonic signals from a computer speaker to a nearby receiver has been shown. In order to eliminate such acoustic channels, current best practice recommends the elimination of speakers (internal or external) in secure computers, thereby creating a so-called 'audio-gap'.

Submitted by Cyber Security ... on Tue, 28/10/2014 - 09:22

How to leak sensitive data from an isolated computer (air-gap) to a near by mobile phone - AirHopper

Security researcher Mordechai Guri with the guidance of Prof. Yuval Elovici from the cyber security labs at Ben-Gurion University in Israel presented at the 9th IEEE International Conference on Malicious and Unwanted Software (MALCON 2014), at Puerto Rico, a breakthrough method (“AirHopper) for leaking data from an isolated computer to a mobile phone without the presence of a network. In highly secure facilities the assumption today is that data can not leak outside of an isolated internal network.