There's the issue that digital data is much more valuable (and/or damaging). Nobody is going to break into an office building to steal their filing cabinets in

There's the issue that digital data is much more valuable (and/or damaging). Nobody is going to break into an office building to steal their filing cabinets in the hopes of finding enough info there to guess someone's mother's middle name and subsequently hope to steal their credit card or bank account. Being able to effectively search, filter, and map against other sources makes digital data particularly valuable. In essence, digital crime scales. That said, I'm not sure I agree with your claim of the ease of digital versus physical security - physical security is something we're fairly good at, having had a few thousand years of practice. I suspect the number of bank robberies in which human factors (The physical equivalent of rubber-hose cryptanalysis being 'pointing a shotgun at the manager') massively outweighs those that were exploited by technical means. That's not to say that they weren't negligent in not even taking the basic precautions that are common sense to anyone working in the field, and even many who aren't.