We've known for some time already that Amazon's AZW files are actually Mobi files, but Amazon didn't share Kindle's Mobi PID which would allow one to buy encrypted Mobi books for Kindle.
Hack let you convert encrypted Mobipocket files that were intended for another reader so that that work on Kindle.
The hack allow ENCRYPTED Mobi files to be read on the Kindle. So you can buy a DRM-protected mobi book and read it on Kindle.
As glued to the net as we all are, there's vast quantities of content that is not available online.
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