I'm not sure they'd need to reverse the URL. Because of how profiling algorithms work, you could just as easily profile someone based on hashes alone. The URL

I'm not sure they'd need to reverse the URL. Because of how profiling algorithms work, you could just as easily profile someone based on hashes alone. The URL doesn't matter. Basically this: https://en.wikipedia.org/wiki/Federated_Learning_of_Cohorts https://en.wikipedia.org/wiki/Federated_Learning_of_Cohorts