How to Hack Computer Monitors?
According to the researchers, an attacker first needs to gain physical access to the monitor’s USB or HDMI port which would then help the attacker access the firmware of the display. The duo said they discovered the hack by reverse-engineering a Dell U2410 monitor, though it was not an easy process, as it took over two years. In the process, the pair found out that Dell had not implemented any security measures with regard to the process to update the display controller’s firmware, which allowed for this hack. This means that anyone with malicious intent and access to the monitor’s USB or HDMI port would be able to hijack monitor — which involves injecting malicious firmware with the help of a drive-by attack — as well as manipulate the on-screen pixels.
What’s even Worse?
The hacker could log the pixels generated by the monitor and effectively spy on the target users. The pair warns that this issue does not limit to just Dell monitors, but also potentially affects one Billion monitors all over the world, given that all of the most common brands have vulnerable processors. However, there’s a downside to this attack, this type of attack is pretty easy to detect, as the image on a screen does not load nearly as fast as it would have before being infected. So it’s possibly not the most efficient way to manipulate things quickly on the computers of victims, who are sitting in front of their computers all the time.