Guests (external users) collaborate in Teams and SharePoint. Without lifecycle management, old partners keep access long after projects end.
Good habits
- Invite guests for a reason, not by default
- Prefer group/team membership over ad-hoc file shares when possible
- Review guest lists quarterly
- Remove access when contracts end
Want this applied in your tenant?
Book a free 15-minute review. We can walk your Microsoft 365 and identity posture and recommend a sensible next step—including ImpetraInsights™ when a formal baseline helps.