Re: No absolute numbers provided. Why?
as opposed to no-one in their right mind storing anything remotely valuable on a Mac Windows
Fixed it for you. It's so much easier securing even the most basic MacBook and keeping it that way that not using them for sensitive stuff ought to immediately result in negligence charges when it inevitably goes wrong. The tools are there to do it right by default, and on a Mac they're built-in (read: supported by the manufacturer).