Late last night Kim Dotcom posted a tweet that accused several US companies of infringing on his IP and after some investigation, I have to agree with him. The patents date back to 1997 and cover the two-step authentication that has recently become popular with big sites who are afraid of hackers.
In the tweet, Dotcom accuses Google, Facebook, Twitter and Citibank of infringing on his patent and he says that he never sued them in the past because he "believes in sharing knowledge and ideas for the good of society." and goes on to say "But I might sue them now because of what the U.S. did to me."
For anyone interested, I have linked to the patent at Source #2. It was filed under Kim Schmits, Dotcom's birth name, and details quite clearly the current method of two-step authentication being used today by many companies. We have reached on to Dotcom for an interview and are awaiting a response, so stay tuned to TweakTown for any updates.