This epic includes a number of issues related to instance-level security related to credentials and credential rotation. This is an important problem space for enterprises, especially those operating in regulated environments. Issues to highlight: * Rotate/expire SSH keys: https://gitlab.com/gitlab-org/gitlab/issues/1007 * Rotate/expire PATs: https://gitlab.com/gitlab-org/gitlab/issues/3649 * Enforce entropy for user passwords: https://gitlab.com/gitlab-org/gitlab/issues/18515 * Warn when accounts use potentially unsafe passwords: https://gitlab.com/gitlab-org/gitlab/issues/23610