[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: Sign-in and Authentication. When you sign into a website using your personal Microsoft account, we store a unique ID number, and the time you signed in, in an encrypted cookie on your device. This cookie allows you to move from page to page within the site without having to sign in again on each page."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty.'}]