Apple says that the government obtained data from 9,000 to 10,000 devices as part of investigations on “robberies and other crimes, searching for missing children, trying to locate a patient with Alzheimer’s disease, or hoping to prevent a suicide.” The company also claims it doesn’t chat messages or videoconferences.
https://gizmodo.com/apple-says-exactly-what-and-how-much-the-nsa-took-513757537