‘Anonymous’ data might not be so anonymous, study shows

We’ve all done it: When signing up for an account online, we’ve clicked “I agree” to have our data sold to third parties. It will be anonymized, we’re assured, and only a small percentage of data will be made available to others.
But how secure can we be that our personal data can’t be traced back to us? That’s the central question that a team of researchers at Université catholique de Louvain in Belgium and Imperial College London sought to answe