Very good idea: adding data-in-use to data-in-motion and data-at-rest.
"What about Data In Use? Can your users print, copy, move, and otherwise twiddle the data they have access to?"
And, data-centered security is something many talk about and few do (for now) - this is a great ongoing theme and a reliable trend which will continue for a while.
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Anton, there is no data-at-rest, there are Repositories (databases, filesystems, files, clusters, bytes, etc). There is no data-in-motion, there are Messages (packets, mails, transactions, etc). As soon as a message is stored, it becomes a Repository or part of one. There is no data-in-use, Interfaces (like printer, fax, scanners, keyboards, screens, and so on) transform data into other encoding of the same data... I really hate the "moving data" lingo particularly, I think the concept Message is far more accurate...
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