Comment Re:Insecure by design? (Score 1) 230
If you mark your keychain as shared or not affects the way it is stored and the keys used to lock it down. It's actually documented quite a bit in their Keychain Security documentation.
There is a potential threat using Keychain Recovery. Less so from Apple or a court order given to them. Keychain is stored in such a way that Apple themselves cannot access it, unless they are lying.
See also: https://support.apple.com/guid...