Process | Requirements |
Registration | - Trusted information (e.g. certified information, security code, information which is matched to certifiable document). - Necessity of physical card or account. - Implementation of additional security techniques (e.g. CAPTCHA, secret question). |
Authentication (login) | - Data which increases difficulty to log into the account. (e.g. mobile number, physical card number, system generated ID). |
Back-up authentication | - Trusted information. |
(password recovery) | - Physical card or account number. |