Apple telling users of iOS 10.3 that some services were accidentally re-enabled
Apple is sending notices to its users of iOS 10.3 that they need to check their iCloud services in Settings > iCloud because the update accidentally re-enables some features that a user may have initially disabled.
The notice reads in part:
We discovered a bug in the recent iOS 10.3 software update that impacted a small number of iCloud users. This may have inadvertently reenabled some iCloud services that you had previously disabled on your device.
We suggest you go to iCloud settings on your iOS device to make sure that only the services you'd like to use are enabled.
Learn more about how to manage your iCloud settings or contact AppleCare with any questions.The iCloud team