Study Shows Cameras Can Steal Data from Computer Hard Drive LED Lights

Researchers at the Ben-Gurion University of the Negev (BGU) Cyber Security Research Center have demonstrated that data can be stolen from an isolated "air-gapped" computer's hard drive reading the pulses of light on the LED drive using various types of cameras and light sensors.
 
(Video from Ben-Gurion University)
 
In the new paper, the researchers demonstrated how data can be received by a Quadcopter drone flight, even outside a window with line-of-sight of the transmitting computer. Click here to watch a video of the demonstration.
 
Air-gapped computers are isolated -- separated both logically and physically from public networks -- ostensibly so that they cannot be hacked over the Internet or within company networks. These computers typically contain an organization's most sensitive and confidential information.
 
Led by Dr. Mordechai Guri, head of R&D at the Cyber Security Research Center, the research team utilized the hard-drive (HDD) activity LED lights that are found on most desktop PCs and laptops. The researchers found that once malware is on a computer, it can indirectly control the HDD LED, turning it on and off rapidly (thousands of flickers per second) -- a rate that exceeds the human visual perception capabilities.
 
As a result, highly sensitive information can be encoded and leaked over the fast LED signals, which are received and recorded by remote cameras or light sensors.
 
"Our method compared to other LED exfiltration is unique, because it is also covert," Dr. Guri says. "The hard drive LED flickers frequently, and therefore the user won't be suspicious about changes in its activity."
 
Dr. Guri and the Cyber Security Research Center have conducted a number of studies to demonstrate how malware can infiltrate air-gapped computers and transmit data. Previously, they determined that computer speakers and fans, FM waves and heat are all methods that can be used to obtain data.
Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Tokushima, Japan - 6 March 2024: Nichia, the world's largest LED manufacturer and inventor of the high-brightness blue and white LED, has started mass production of the new UV-B (308nm) and UV-A (330nm) LEDs in its popular 434 Series packa... READ MORE

New XLamp® S Line LEDs enhance growth, last longer, lower energy costs Horticulture and other forms of agricultural lighting require application-tuned ratios of spectral content, high efficacy and long lifetimes. Whether you are interested... READ MORE