In fact, when you first reboot your phone, even contacts cannot be accessed until you authenticate with your passcode to unlock the secure element.
I don't have a password on my iPhone. I don't need one, because I don't store any critical data on the phone, or spend any significant time in environments where it's likely to be stolen. And I guess I'm naive enough to assume that no one from the NSA Tailored Operations department is going to sneak into my bedroom at night and install a malicious fingerprint sensor.
So, no, there is absolutely no reason for Apple to brick my entire iPhone if the sensor fails validation. They should act to maintain the level of security chosen by the user... no more, no less.
I don't have a password on my iPhone. I don't need one, because I don't store any critical data on the phone, or spend any significant time in environments where it's likely to be stolen. And I guess I'm naive enough to assume that no one from the NSA Tailored Operations department is going to sneak into my bedroom at night and install a malicious fingerprint sensor.
So, no, there is absolutely no reason for Apple to brick my entire iPhone if the sensor fails validation. They should act to maintain the level of security chosen by the user... no more, no less.