does not know the original IP address of the user, the Relay IP addresses rotate over time and between sessions, helping to prevent their use as a stable id...

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

, which are one of the strongest chemical bonds known. PFAS are widely used because they have unique performance properties. For instance, they’re extremely...

https://www.apple.com/jp/environment/pdf/Apple_PFAS_Commitment_November-2022.pdf