Typically, this data is not sold attached to an individual, but in aggregate and annonymized to help determine spending patterns, habits, etc. There is a signi

Typically, this data is not sold attached to an individual, but in aggregate and annonymized to help determine spending patterns, habits, etc. There is a significant difference between this and extensive government data with your name attached, though I agree it's not great from a privacy perspective. Typically (as has been said) you can opt out of this sharing.