You need to understand the Microsoft 365 security settings that govern identity, access, activity, and administration in your environment. Those settings help determine who can reach systems and data, how access is verified, and which activity is available for investigation.

The work begins in Microsoft Entra ID, formerly Azure Active Directory. When you purchase Microsoft 365, Microsoft creates a tenant connected to that identity platform. The tenant belongs to you, not the licensing reseller. You remain responsible for understanding how it is configured and deciding which controls fit your users, risk assessment, and operating needs.

That responsibility cannot be handed off completely. A provider can manage settings and add technical capacity, but your leadership still needs visibility into the controls protecting your institution and the exceptions that may weaken them.

Monitor for Exceptions to Security Controls

Putting policies in place is only the first part of the job. You also need to monitor for exceptions, configuration changes, and activity that may indicate compromise. Microsoft 365 includes many controls, and their interactions can make a gap difficult to recognize without structured reporting and review.

Some controls also affect the employee experience. A policy that is too restrictive can interrupt legitimate work. A policy with broad exclusions may leave an access path exposed. You have to balance protection and availability without treating either one as optional.

Build policies around the work users are permitted to perform, the risks you’ve identified, and the effect a control will have on operations. Then connect to the relevant Microsoft data and examine whether the settings are producing the intended result. Assumptions are not enough when a configuration change can affect every user or leave an exception unnoticed.

Turn Microsoft Data Into Usable Oversight

A managed approach to Microsoft 365 should give you usable visibility rather than another stream of raw data. Three capabilities support that work:

1. Reporting: Reports should collect relevant Microsoft data and present core security settings in a format IT personnel can review. Summary views can help identify an anomaly quickly, while detailed reports provide the information needed to investigate it. Keeping reports over time also gives you a record of configuration changes.
2. Alerting: Reports are useful for review, but some events need attention sooner. Alerts can identify common setting changes or activity that may indicate compromise so you can investigate and respond without waiting for the next reporting cycle.
3. Periodic reviews: A quarterly review gives you time to examine reports, discuss configuration changes, and decide whether current controls still fit your risk and operating needs. The review should lead to clear decisions, ownership, and documented follow-up where changes are required.

Start With MFA and Auditing

Multifactor authentication and auditing are two foundational settings. MFA adds another verification step to the sign-in process and should cover every user unless you have a documented, controlled exception. Auditing records activity that may be needed to investigate changes, understand an event, and support accountability.

Neither setting should be treated as a box checked once. MFA coverage can change when accounts, applications, or policies change. Audit settings and retention need to support your investigation and reporting needs. Regular validation confirms that the controls remain active where your leadership expects them to be.

Microsoft 365 gives you a broad set of security controls, but more settings do not automatically create more security. You need to know which controls are active, where exceptions exist, what changed, and who is responsible for reviewing the result. Clear reporting, timely alerts, and recurring review make that work manageable and keep decisions tied to your risk.