Proprietarty
All proprietary software carries with it a risk - that there could be any kind of code inside that users can't see that could be doing any kind of thing with your computer or data. This applies to every company, be it the big boys like Apple, Microsoft, Google, or the little guys working on their own in bedrooms.
The retail and business releases of W10 should not, in any fair world, have any snooping code in them. But do we trust MS if they say it won't/doesn't have it?
Ultimately our usage of any software comes down to trust, both in the developer and other users, because we can't check every single line of code in every single program we use ourselves.
Biting the hand that feeds IT
