their devices with their most sensitive data. We built industry-leading security protections into the device, and we created the App Store, a trusted place ...

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

Ad measurement that respects user privacy 5 ........................................................ Minimizing data sharing with the Smart Search field 6。

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