[fluxinflex]

I used "generated" viewed from the user, "collected" would be from the perspective of the company. I wonder whether there is a legal difference in the case of law changes, which date would be taken?

The classic form of retroactive application of laws would be if someone performed an action, the law was backdated so that action becomes illegal and the performer becomes a criminal.

In this case we're talking not about direct action as the action is implied via the data collected. So if the action was performed before the backdating of the law but the data was collected after the backdating, is the performer a criminal?

So from the data, an action is "inferred".