Apple updated its iTunes Store terms and privacy disclosures. Included is how the company computes a device trust score to prevent fraud.
To help identify and prevent fraud, information about how you use your device, including the approximate number of phone calls or emails you send and receive, will be used to compute a device trust score when you attempt a purchase. The submissions are designed so Apple cannot learn the real values on your device. The scores are stored for a fixed time on our servers.
They aren’t full records, rather “abstracted.” It’s not like Apple is going to abuse this information, but at first glance it does seem a bit unusual. Especially for devices like Apple TVs that don’t have email or phone capabilities.