A somewhat careless, reactionary blog post.<p>"… On Nov. 20, a pair of iOS developers known as Mysk discovered that Apple has a specific identifier (a “directory services identifier” or DSID) for every Apple iCloud account. …"<p>– as if Mysk discovered this. Not so.<p>DSID-related analysis was performed more than seven months earlier – by a group of five researchers, including four at the University of Oxford.<p>Konrad Kollnig, Anastasia Shuba, Max Van Kleek, Reuben Binns, and Nigel Shadbolt. 2022. Goodbye Tracking? Impact of iOS App Tracking Transparency and Privacy Labels. In 2022 ACM Conference on Fairness, Accountability, and Transparency (FAccT '22). Association for Computing Machinery, New York, NY, USA, 508–520. <a href="https://doi.org/10.1145/3531146.3533116" rel="nofollow">https://doi.org/10.1145/3531146.3533116</a><p>(Version 1 was submitted on 7th April 2022.)