air-gap systems | Breaking Cybersecurity News | The Hacker News

Cybersecurity researcher Mordechai Guri from Israel's Ben Gurion University of the Negev recently demonstrated a new kind of malware that could be used to covertly steal highly sensitive data from air-gapped and audio-gapped systems using a novel acoustic quirk in power supply units that come with modern computing devices. Dubbed ' POWER-SUPPLaY ,' the latest research builds on a series of techniques leveraging electromagnetic, acoustic, thermal, optical covert channels, and even power cables to exfiltrate data from non-networked computers. "Our developed malware can exploit the computer power supply unit (PSU) to play sounds and use it as an out-of-band, secondary speaker with limited capabilities," Dr. Guri outlined in a paper published today and shared with The Hacker News. "The malicious code manipulates the internal switching frequency of the power supply and hence controls the sound waveforms generated from its capacitors and transformers....

Air-gapped computers that are isolated from the Internet and other computers are long considered to be the most secure and safest place for storing data in critical infrastructures such as industrial control systems, financial institutions, and classified military networks. However, these systems have sometimes been targeted in the past, which proves that these isolated systems are not completely secure. Previous techniques of hacking air gap computers include: AirHopper that turns a computer's video card into an FM transmitter to capture keystrokes; BitWhisper that relies on heat exchange between two computer systems to stealthily siphon passwords or security keys; Hacking air-gapped computer using a basic low-end mobile phone with GSM network; and Stealing the secret cryptographic key from an air-gapped computer placed in another room using a Side-Channel Attack. Now, researchers have devised a new method to steal data from an infected computer even if it has no...

An air-gapped computer system isolated from the Internet and other computers that are connected to external networks believes to be the most secure computers on the planet -- Yeah?? You need to think again before calling them 'safe'. A group of Israeli security researchers at the Cyber Security Labs from Ben Gurion University have found a new technique to hack ultra-secure air-gapped computers and retrieve data using only heat emissions and a computer's built-in thermal sensors. WHAT IS AIR-GAPPED COMPUTERS ? Air-gapped computers or systems are considered to be the most secure and safest computer systems. These systems are isolated from the Internet or any other commuters that are connected to the Internet or external network. Air-gapped systems are used in situations that demand high security because it's very difficult to siphon data from these systems, as it requires a physical access to the machine which is possible by using removable device such as a U...

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