A little over a week ago Apple released the iOS 10.3 update which is one of the more major updates for iOS 10. While the update did bring about new features, changes, improvements, and bug fixes, it seems that it has also come with some small problems of its own, such as the accidental re-enabling some iCloud services.
In an email that Apple has sent some of its users, “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.” It is unclear how widespread this is, or what services were re-enabled as a result of this, but it doesn’t seem to be too big of a problem.
If you do rely on iCloud rather heavily to backup your device and photos, then perhaps it might be prudent to check your iCloud settings to make sure that the services you want are enabled, and those you don’t want remain disabled. We should point out that this only affects some users who updated to iOS 10.3. As you might have heard, Apple recently released iOS 10.3.1 shortly after iOS 10.3.
If you had updated to iOS 10.3.1 directly instead of iOS 10.3, then it seems that this problem shouldn’t affect you.