In case you missed it last week, @themarkup published a deep dive into how ad-tech labels audience segments using various pools of personal data. The scoop's based on a spreadsheet found on Microsoft-owned Xandr's website with 650,000 different segments. https://
themarkup.org/privacy/2023/0
6/08/from-heavy-purchasers-of-pregnancy-tests-to-the-depression-prone-we-found-650000-ways-advertisers-label-you
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