A close up of a hand operating a smartphone's touch screen. (Flickr / Japanexperterna.se)
03 Aug 2015

Can Websites Track You Using Your Phone’s Battery Life?

W3C’s specification explicitly frees sites from needing to ask user permission to discover they remaining battery life, arguing that “the information disclosed has minimal impact on privacy or fingerprinting, and therefore is exposed without permission grants”. But in a new paper from four French and Belgian security researchers, that assertion is questioned.

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