BACKGROUND

In order to access network services, users are requested to present security credentials, such as usernames and passwords, for authentication. Many services have transitioned to multi-factor authentication, where additional types of authentication factors may be required for authentication. This is to increase security and avoid account compromises in situations where a single authentication factor is compromised. Even with services that use multi-factor authentication, users may not be required to provide all factors for each log-in. For example, a user may be required to provide an additional authentication factor no more than once per device per month.

