[{'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: Security Protecting user privacy and personally identifiable information is a top priority for Tango. We make substantial efforts to ensure the privacy and security of all personally identifiable information you provide to us. Access to all personally identifiable information is restricted to those individuals who need to know that information in order to provide, operate, develop, maintain, support or improve the Service. Tango uses password protection, access logs, and system monitoring to safeguard the confidentiality and security of all member information."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]