Saturday 26 November 2016

Wifi Hacking @ a new level

Wifi Hacking @ a new level

 

Hackers can steal your sensitive information, such as your Passwords, PINs and Keystrokes, from your phone by observing changes in the wireless signal as you enter them into your smartphones.
A group of researchers from the Shanghai Jaio Tong University, the University of South Florida and the University of Massachusetts at Boston have demonstrated a new technique that can reveal private information by analyzing the radio signal Interference, using just one rogue WiFi hotspot.
Dubbed WindTalker, the attack sniffs a user's fingers movement on the phone's touchscreen or a computer's keyboard by reading the radio signal patterns called Channel State Information (CSI).

Here’s How An Attacker Track your fingers moves on a smartphone screen:

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When you enter your PIN number or password in any app or swipe your smartphone lock screen pattern, your finger movements alter the WiFi signals transmitted by a mobile phone, and the movements are imprinted into the signal.

Now, hackers with control to a public Wi-Fi hotspot to which your device is connected to could then intercept, analyze, and reverse engineer those signals to accurately guess what sensitive data you have typed into your phone or in password input fields.
The WindTalker attack is particularly effective as it does not require any access to the victim's phone and works with regular mobile phones.

The attack needs the hacker to control a rogue WiFi access point to which the target will connect to and collect WiFi signal disturbances.
WindTalker will also not work with older internet router that has one antenna to broadcast Wi-Fi signals around your home, as it relies on a technology called Multiple Input, Multiple Output (MIMO).



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However, this is not a problem because the latest wireless routers now come with multiple antennas and MIMO technology, which enables routers to connect and transmit data from multiple devices simultaneously.


WindTalker Attack has an Over 68% Accuracy


 

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