Consent to Use of Data.
You agree that Apple and its subsidiaries and agents may collect, maintain, process and use diagnostic, technical and related information, including but not limited to information about your computer, system and application software, and peripherals, that is gathered periodically to facilitate the provision of software updates, product support and other services to you (if any) related to the Apple Software, and to verify compliance with the terms of this License. Apple may use this information, as long as it is in a form that does not personally identify you, to improve our products or to provide services or technologies to you.
—From Apple’s software license agreement for Snow Leopard