Britney Nguyen. Ex-Twitter engineer says he quit years ago after refusing to help sell identifiable user data, worries Elon Musk will 'do far worse things with data'. November 2022. URL: https://www.businessinsider.com/former-twitter-engineer-worried-how-elon-musk-treat-user-data-2022-11 (visited on 2023-12-10).
The article goes over how and ex software engineer at Twitter was asked by a telco company to allow them to peer in on user data. After some back and fourth, the telco company made it clear that they wanted data to tell them everything about a particular user, and Twitter confirmed that something like that wouldn't break any of their guidelines. The engineer left shortly after, but he explains his worries about Elon Musk and his ownership and how it will likely be worse.