Most businesses pay for Microsoft 365 Business Premium or E3 and use it for email, Word, and Teams. What they're not using is a fairly substantial security platform that's included in the same subscription.

Microsoft Defender for Business

Included in Microsoft 365 Business Premium, Defender for Business provides endpoint detection and response (EDR) for Windows devices — the same class of protection that enterprise security teams deploy. It needs to be configured and onboarded, but it's not an add-on cost.

Most SMBs running 365 Business Premium have Defender sitting dormant because no one set it up.

Conditional Access Policies

Azure Active Directory (now called Entra ID) in Microsoft 365 lets you enforce policies like: "only allow sign-ins from managed devices" or "require MFA when logging in from outside the country." These policies dramatically reduce the blast radius of a compromised credential.

They take about two hours to configure and are included in your existing license.

Microsoft Secure Score

Microsoft maintains a Secure Score for your tenant — a running assessment of how well your 365 environment is configured against their recommended security baseline. It surfaces specific, prioritized recommendations with step-by-step implementation guides.

The average Microsoft 365 tenant has a Secure Score well below 50%. The target should be 70%+.

Intune Device Management

Microsoft Intune (included in Business Premium) lets you enforce encryption, require PINs, remotely wipe lost devices, and prevent data from being copied to personal devices. It's a full mobile device management solution included in licenses most businesses already have.

The Gap Is Configuration, Not Cost

The security features in Microsoft 365 are legitimate enterprise-grade tools. The reason most businesses don't benefit from them isn't budget — it's that configuring them correctly requires expertise that most internal IT generalists or break-fix providers don't specialize in.

A Microsoft 365 security configuration review typically takes a day and pays for itself many times over.