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Take Control of Your iPhone, 2nd Edition by Ted Landau

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Handle Other Passwords

Your iPhone may contain a variety of other passwords. Unfortunately, the iPhone offers no protection against the use of these passwords should your iPhone be lost or stolen. The best that can be said is that the passwords are not listed in plain text when checked in Settings. So, while your passwords can be used by anyone with access to your iPhone, such users cannot easily discover what they actually are. In any case, you should be aware of these passwords and how they work, so you know what is at risk.

Voicemail Password

Your phone voicemail has its own password, separate from the SIM PIN and passcode lock codes. The voicemail password is required for access to your voicemail and cannot be turned off. However, once it is ...

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