Test-Datasets and EU Liability – mixed law/IT

Here is a modified version of a question I’m about to answer on Quora. Warning: as it says on the tin, this post is both law and IT. Don’t say you weren’t warned… Can copies of postcode, gender and age data be used in testing without violating the Data Protection Act or the GDPR? Such questions are becoming more and more frequent, as people begin to panic with the realization that two decades of previously unlawful behavior is now going to [...]