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Specialists have learned how to hack computers through the brightness of the monitor

Researchers from Ben-Gurion University (Israel) found a very unusual method of stealing data from a PC without physical access to it and without connecting to the Internet. To do this, they track the brightness of the monitor.


The new method is to track small changes in LCD screen brightness. Such vibrations are invisible to the human eye, but the camera can easily capture them. The only difficulty is that first the victim's computer needs to be loaded with special software. After that, the attacker can remotely steal the data.

Once on the device, the virus starts collecting important data such as passwords, encryption keys, files, photos, and so on. After that all the information is modulated into binary code in the form of "0" and "1", and the monitor transmits these signals by adjusting the brightness. This method is something like Morse code. Next, attackers only need to access the CCTV cameras to intercept the signal.

 
The main feature of this method is that the victim's computer can be disconnected from the Internet. It is unlikely that anyone will use this method in real life.

Interestingly, in the past, specialists from the same university were able to hack into the computer through the keyboard, headphones and power cable.

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