[dandelo1953]

Data that needs to be shared should be signed by sender at every port of exit and by receiver at every port of entry. All significant transformations should also be signed in a manner that allows one to follow data to it's real world source.

If applying complete attribution to our data was the norm, for at least some markets places, entities empowered by our data would be much less likely to just "share" it willy nilly.

Dark markets will always exist, but I think attribution of data would incentives certain corporations (health, banking, etc) to act in their users better interests, at least compared to what we have now.