> Device data is encrypted with a user’s passcode
I think it uses the passcode you set on your phone, not the password of your iCloud account.
I think it uses the passcode you set on your phone, not the password of your iCloud account.
May be true, but
> access to iCloud data including backups requires the user’s Apple ID and password.
probably doesn't requires the passcode that the user have set, because this data is available across several devices, and the only common thing would be the Apple ID and its password.
https://tidbits.com/article/14557
It involves hardware security modules, cross-device crypto signing and other fun stuff. Apple cannot access the data they store about you on their servers.
From Apple's documentation:
Apple designed iCloud Keychain and Keychain Recovery so that a user’s passwords are still protected under the following conditions:
- A user’s iCloud account is compromised.
- iCloud is compromised by an external attacker or employee.
- Third-party access to user accounts.
Other data in iCloud is generally under less extreme levels of security. This isn't to say that it's insecure, merely that it's not as fanatically protected. Some of it may be accessible by resetting your account password.