Windows 8 contacts cache exposes personal data

this bit caught my eye" at least, I was very surprised to find -- that Windows 8 doesn't build its Contacts list dynamically. Instead, it keeps a cache of contacts from all of those sources stored on the machine. The cache persists even when the user logs off or the machine is turned off."

Surely that has always been the case? There has, way back into legacy OSs, been a folder "Contacts". Whatever you choose to put in there, is available to all.