Microsoft 365 is not a set-it-and-forget-it system. It changes, your team changes, and attackers keep looking for weak settings. If nobody reviews the tenant, small gaps can become big problems.
For New Castle businesses, the goal is not to make Microsoft 365 complicated. The goal is to check the few settings that reduce the most risk.
1. Multi-factor authentication coverage
MFA should be enforced for every user, but admin accounts deserve extra attention. If your tenant still allows weak methods or inconsistent enrollment, start there.
Where possible, move toward stronger authentication methods like number matching, authenticator apps, passkeys, or other phishing-resistant options.
2. Admin roles and privileged access
Too many businesses have more administrators than they realize. Some accounts were made admin for a project and never changed back. Others use daily email accounts as admin accounts.
Review who has admin rights, remove what is not needed, and separate admin activity from normal email and web browsing. This is basic cybersecurity hygiene.
3. External sharing
SharePoint and OneDrive make collaboration easy, which is good until files are shared too broadly or guest access stays open forever.
Check external sharing settings, guest users, anonymous links, and old project folders. If sensitive files are involved, make sure access is intentional and reviewed.
4. Mailbox forwarding and inbox rules
Attackers love hidden forwarding rules because they can quietly copy mail even after a password is changed. Review automatic forwarding, suspicious inbox rules, and alerts for risky sign-ins.
This matters for invoice fraud, account takeover, and any business that relies heavily on email.
5. Backup and retention assumptions
Microsoft 365 includes helpful retention and recovery features, but that does not mean every deleted email, file, or mailbox is recoverable forever. Know what is protected, for how long, and how restore works.
If downtime or data loss would hurt your business, pair Microsoft 365 management with a real business continuity plan.
Need a Microsoft 365 settings review?
Hoola helps New Castle and East Central Indiana businesses manage Microsoft 365, reduce security gaps, and keep daily operations moving. Learn more about our cloud services, call (765) 233-2338, or contact Hoola.