Then we will recover all areas of the database. A user can request that the processing of their data be stopped. Finally, in the public database, you need to check the data you store for a particular user and determine which data should be deleted. Apple takes the security of your personal data very seriously. Apple online services such as the Apple Online Store and iTunes Store protect your personal data by using encryption like Transport Layer Security (TLS). When your personal data is stored by Apple, we use restricted computer systems that are housed in facilities that use physical security measures. With the exception of iCloud Mail, iCloud data is stored in an encrypted form, even if we use third-party memory. As a developer, you can store user data in iCloud backup, Key Value Store, iCloud Drive and CloudKit. You should make sure that the user really wants to delete his data en masse. For shared databases and public databases, you need to make a difference when determining which data should be returned to the user.