Given a part of privacy policy text, identify the purpose for which the user information is collected/used. The purpose should be given inside the policy text, answer as 'Not Specified' otherwise
Example: The site collects your IP address or device IDs for advertising. Collection happens when you implicitly provide information on the website.
Example solution: Advertising
Example explanation: The given policy text states that it uses user information for 'advertising' explicitly

Problem: When a change is made to the privacy policy that significantly affects data practices, users are notified when visiting the website. Users' choices regarding policy changes are not mentioned or are unclear.

Solution: Not Specified