As part of the two-factor authentication requirement program on GitHub.com, the People pages of enterprises and organizations have been updated to include the 2FA requirement status of members and collaborators. As an administrator, you can see which of your users have not yet enabled 2FA but are required to do so because of an action they have take in one of your organizations, or elsewhere on GitHub.com.
A clock icon will appear as a user's 2FA status will show if the user is required to enable 2FA. When the icon is red, they are past the due date for enabling 2FA, and are at risk of being blocked from accessing GitHub.com until they enable it. Clicking the clock icon will display the user's enrollment date.
You can filter the UI to show only users who have a pending requirement. Enrollment dates are also now included in the CSV and JSON downloads of enterprise and organization memberships.