Take a look at point 5.2 of the Term of Use.
Link: http://amzn.to/eeSaB3
Quote: "
5.2 Our Right to Access Your Files. You give us the right to access, retain, use and disclose your account information and Your Files: to provide you with technical support and address technical issues; to investigate compliance with the terms of this Agreement, enforce the terms of this Agreement and protect the Service and its users from fraud or security threats; or as we determine is necessary to provide the Service or comply with applicable law." ...
not that encouraging imho.