This is a mistake, as through it, hackers are able to obtain information about the PIN code, enabling access to our computer. They can also – under the appropriate conditions – infer the movement of our hands, as well as determine the shape of the human head or our presence in front of the screen. MIT scientists point out that such a set of data could enable criminals to gain access to our computer. This is especially possible now, in the era of various tools using artificial intelligence and aiding hackers.