[{'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: The Internet is not 100% secure. We cannot promise that your use of our platforms will be completely safe. We encourage you to use caution when using the Internet. This includes not sharing your passwords. We keep personal information as long as it is necessary or relevant for the practices described in this Policy. We also keep information as otherwise required by law."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]