Re: "scanning individual users' iPhones"
They just have to put in in the "no-one has a couple of days spare to read it all" agreement you have to sign before any modern stuff works and it becomes legal - as in "we can do it, we asked for permission (on page 273 of 425 pages) and you said yes".
https://www.onelegal.com/blog/fantastic-clauses-hidden-in-contracts-and-eulas/
Biting the hand that feeds IT
