this separation, Apple has engineered an innovative dual-hop architecture in which users’ requests are sent through two separate internet relays operated by...

https://www.apple.com/jp/privacy/docs/iCloud_Private_Relay_Overview_Dec2021.PDF

Sign in with Apple 
 Sign in with Apple Fast, easy sign-in with privacy built in November 2019 Overview Sign in with Apple is a new service from Apple that ...

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

A Day in the Life of Your Data Building a Trusted Ecosystem for Millions of Apps The important role of App Store protections June 2021 “We’re trying to do t...

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