I'm not affiliated with Elcomsoft and don't know their real intentions, but what they are trying to do is perfectly reasonable. Once they release a commercial product with such feature it is only a matter of time until Microsoft or some other patent troll will run for a patent and start suing. So, having the patent beforehand will address this matter. It still would be beneficial even if Elcomsoft will fail this patent application, because it will make any future such applications disputable.
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