David Kravets writes:
A New York-based mobile-web advertising company was hit Wednesday with a proposed class action over its use of an HTML5 trick to track iPhone and iPad users across a number of websites, in what is believed to be the first privacy lawsuit of its kind in the mobile space.
The company, Ringleader Digital, uses HTML5’s client-side database storage capability as a substitute for the traditional cookie tracking employed by all major online ad companies. Mobile Safari users visiting sites with Ringleader ads are assigned a globally unique ID number which is stored by the browser, and recalled by Ringleader whenever they revisit.
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