The closure of a user's account does not automatically remove them from a Grouper group. Therefore, groups may contain users who have left the University. You should enable the Closure Group Type to have closed accounts removed automatically from your group both for security purposes and general upkeep.
When Closure is enabled, closed accounts will be removed from your group when they reach Closure Day 45, guaranteeing that the individual does not have access. To apply the Closure Group Type:
For more information on account closures, see Account Closure Overview.