If you've ever opened the Microsoft 365 Defender portal and looked at your Secure Score, there's a good chance you felt a quiet sense of dread. A number somewhere between 25% and 45% staring back at you - and no clear sense of what it means or where to start.

You're not alone. The average Microsoft Secure Score for SMBs hovers around 34%. The good news: most of the low-hanging fruit can be addressed without expensive licenses or a team of security engineers.

34%

The average Microsoft Secure Score for SMBs - well below the recommended baseline of 70–80% that cyber insurers and compliance frameworks now expect.

What Is Microsoft Secure Score, Actually?

Secure Score is Microsoft's built-in measurement of your organization's security posture across identity, devices, apps, and data. Every recommended action - like enabling MFA or turning on audit logging - is worth a certain number of points. Your score is your current points divided by your maximum possible points, expressed as a percentage.

It's not a perfect measurement of security, but it's a genuinely useful proxy. Organizations with higher Secure Scores consistently experience fewer account compromises, faster incident detection, and better cyber insurance terms.

Important: Your Secure Score reflects configuration, not activity. A score of 80% doesn't mean you've never been attacked - it means you've made it significantly harder for attackers to succeed.

The Five Gaps That Drag Scores Down Most

After reviewing dozens of M365 tenants, the same five issues appear again and again in organizations stuck below 50%:

1. MFA Not Enforced for All Users

This is the single highest-impact item on the Secure Score checklist. Requiring multi-factor authentication for all users - especially admins - prevents the overwhelming majority of account compromise attacks. If you're using legacy authentication methods or relying on per-user MFA settings instead of Conditional Access policies, you're exposed.

2. No Conditional Access Policies

Conditional Access is the engine behind intelligent sign-in security. Without it, a user's credentials stolen from a phishing email can be used from anywhere in the world, at any time, on any device. Basic Conditional Access policies - block legacy auth, require MFA for admins, require compliant devices - are available on Business Premium and above.

3. Audit Logging Disabled

Microsoft 365 audit logging is not enabled by default on all tenants, and many organizations have never turned it on. This means that when something goes wrong - a breach, a data leak, a suspicious sign-in - you have no forensic trail. Audit logs are also a hard requirement for most cyber insurance policies and compliance frameworks.

4. Over-Permissioned Admin Accounts

The principle of least privilege is routinely violated in SMB tenants. Global Administrator is handed out like a help desk perk. The fix: audit your admin roles, use PIM (Privileged Identity Management) if you have the license for it, and ensure that day-to-day admin tasks use scoped roles - not Global Admin.

5. Defender Recommendations Ignored

Microsoft Defender for Office 365 ships with a list of recommended policies - anti-phishing, safe links, safe attachments - that are not enabled by default. The Configuration Analyzer in the Defender portal will show you exactly which recommended settings are missing. Most of them take minutes to enable.

A Prioritized Path to 80%+

Don't try to fix everything at once. Here's a sequenced approach based on impact-per-hour-of-effort:

  1. Week 1: Enable unified audit logging. Turn on MFA for all administrators. Review and remove unnecessary Global Admin assignments.
  2. Week 2: Deploy Conditional Access baseline policies - block legacy authentication, require MFA for all users.
  3. Week 3: Run the Defender Configuration Analyzer and enable the Standard protection preset for email.
  4. Week 4: Review Secure Score improvement actions sorted by "Score impact." Work through the top 10 actions that apply to your license tier.

Following this sequence, most organizations can reach 65–75% within 30 days without any license upgrades - purely through configuration changes.

License check: Some Secure Score recommendations require Entra ID P2 or Defender for Endpoint. Before chasing a recommendation, verify it's available on your current license tier. Chasing unavailable items is a common source of frustration.

What Score Should You Be Targeting?

For most SMBs, a realistic and meaningful target is 70–80%. Above 80% often requires significant investment in Defender for Endpoint, Entra ID P2, and other premium features. The 70–80% range represents a defensible security posture that satisfies most insurance requirements and compliance frameworks, without over-engineering.

If your tenant is currently sitting below 50%, focus first on the five gaps listed above. They represent the highest real-world risk, and closing them will have an immediate, measurable impact on your score and your exposure.

If you'd like a hands-on review of your tenant's Secure Score and a prioritized action plan, our M365 Security Review is a natural starting point. We work through your specific configuration, not a generic checklist.

Microsoft 365 Secure Score MFA Conditional Access Security Baseline