They use Amazon as well: > The encrypted chunks of the file are stored, without any user-identifying information, using third-party storage services, such as S

They use Amazon as well: > The encrypted chunks of the file are stored, without any user-identifying information, using third-party storage services, such as S3 and Google Cloud Platform. https://images.apple.com/business/docs/iOS_Security_Guide.pdf https://images.apple.com/business/docs/iOS_Security_Guide.pd... Page 53.