Wi-Fi Signal Interference Can Leak Your Passwords and Keystrokes
Nov 14, 2016
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). CSI is part of the WiFi protocol which provides general information about the status of the WiFi signal. " WindTalker is motivated from the observation that keystrokes on mobile devices will lead to different hand coverage and the finger motions, which will introduce a unique interference to the mult...
