Kim Dotcom, founder of the seized file-sharing site Megaupload, hinted via Twitter that he might sue the slew of companies using two-step authentication, for which Dotcom claims to own the patent. Dotcom provided a link to a patent that deals with two layers of identification, corroborating his purported ownership.
Source: http://www.technewsworld.com/rsstory/78133.html
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