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Stop Hackers From Learning Your Keystrokes Through WiFi

Posted by on in Internet Privacy
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It seems that cyber dangers tech users face increase on a daily basis. We are constantly forced to adapt to the tactics of hackers and other types of cyber criminals just to protect our privacy. Now we have yet another method of cyber attacks to try our best to evade.

Researchers have found that attackers could be using your WiFi signal to track keystrokes on your keyboard. This vulnerability leaves us open to have our pertinent and or private information obtained by criminals. This sensitive information could be anything from a social media password to your bank account information.

In the past, scientists demonstrated how WiFi signals can be used to read hand gestures and even go as far as to read lip movements. This process was successfully completed using two methods. According to Softpedia, off-the-shelf equipment was used to conduct an experiment called WiKey. They used a TP-Link TL-WR1043ND WiFi router and a Lenovo X200 laptop.

WiFi Router

The first method collects small shifts in the WiFi signals using the router’s Multiple-Input and Multiple Output (MIMO) capabilities. MIMO refers to the set of functions that allows to send multiple signals on the same radio channel. Researchers used these signals like a scanner to sweep through the room and create a map of the environment to track your strokes.

The other method uses WiKey to detect keystrokes when a person stands in front of a laptop and begins to type, the tiny movements of a person's hands creates a disruption. WiKey uses the WiFi signal to pick up those disruptions caused by the shift of the user's fingers and keystrokes.

Both of these methods have been proven to be very effective and gives hackers an accuracy that ranges from 77 to 97.5 percent. Those are pretty good chances for a hacker to retrieve the information that you are typing into your computer and sufficient enough to hack into your accounts.

Fortunately, this is an easy hack to defeat. In real world scenarios it takes time to train the WiKey. Preventing the hack is about disrupting the hacker's ability to easily track your tiny movements. With only one person in the room typing hackers have better chances of successfully deciphering keystrokes. More than one person in the room creating disruptions in the signal makes it far more difficult for hackers to decipher keystrokes. Two or three people typing in the room seriously disrupts the ability to distinguish differences between target and renders the hack useless.


Source : http://www.vix.com/en/tech/525820/stop-hackers-from-learning-your-keystrokes-through-wifi

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