[joombaga]

CAN and CAN'T in this kind of documentation should sometimes be interpreted as WILL and WON'T, or HAVE BEEN TRAINED NOT TO.

[duskwuff]

A friend of mine used to work in Apple's account security phone department, and can confirm that they really do mean CAN'T. Support techs can view a few bits of information that aren't displayed to the user, but cannot change anything.