all passwords are stored in hashed and salted form (and several external authorized services are supported via OAuth 2.0). </li> <li> all passwords in the production configuration files are encrypted and certificates required to decrypt configs are installed on the production machines by administrators and not accessible for engineers with lower levels of access. </li> <li> a limited number of our employees have access to personal data and they are all bound by relevant confidentiality covenants under their employment or civil law services agreements. </li> <li>