to evaluate the strength and security of the DNSSEC chain of trust for domain names within the .Apple TLD. This DPS does not apply to other domain names own...

https://www.apple.com/jp/legal/intellectual-property/tld/dps/

security risks not only on third-party app stores, but also on the App Store. Because of the large size of the iPhone user base and the sensitive data store...

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