In iOS, the information is visible under Settings > Privacy > Analytics > Analytics Data, in entries that begin with “DifferentialPrivacy.” In macOS, users ...

https://www.apple.com/jp/privacy/docs/Differential_Privacy_Overview.pdf

not stop there. The persistent identity provided by a social login can be combined with data from tracking pixels and other analytics inside of apps that tr...

https://www.apple.com/jp/privacy/docs/Sign_in_with_Apple_White_Paper_Nov_2019.pdf

each time the site is visited. Safari is designed to hide the user’s identity when sharing information with Apple. Analytics data shared with Apple is not a...

https://www.apple.com/jp/safari/docs/Safari_White_Paper_Nov_2019.pdf