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).

Source: http://bit.ly/2eYxf5x