Tech companies have repeatedly reassured the public that trackers used to follow smartphone users through apps are anonymous or at least pseudonymous, not directly identifying the person using the phone. But what they don’t mention is that an entire overlooked industry exists to purposefully and explicitly shatter that anonymity.

Cox, J. (2021, July 14). Inside the Industry That Unmasks People at Scale. Vice. https://www.vice.com/en/article/epnmvz/industry-unmasks-at-scale-maid-to-pii