Knowing who talks to who, at what times, the type and approximate size of messages, the members of groups, and the contents of the phone book of every user gives enough information to keep their business model without exposing them to court orders asking for the plaintext
Similarly Google runs 8.8.8.8 so they know what services you use that aren’t HTTP that they don’t have bugged already.
Similarly Google runs 8.8.8.8 so they know what services you use that aren’t HTTP that they don’t have bugged already.