Why MSPs Need Automated Microsoft 365 Security Audits

March 01, 20264 min read

The Scaling Problem Every MSP Faces

You have 30 clients. Each one has a Microsoft 365 tenant. Each tenant has dozens of security settings across identity, email, SharePoint, Teams, compliance, and device management that need to be checked regularly.

If a thorough manual audit takes 4-6 hours per tenant, that is 120 to 180 hours per quarter just for security assessments. That is more than a full-time employee doing nothing but audits. And it still would not catch everything.

This is why automated security audits are not a luxury for MSPs — they are a necessity.

What Manual Audits Miss

Even experienced admins miss things when auditing manually. The human brain is not built to check thousands of configuration permutations consistently.

Common blind spots in manual audits:

  • Mail flow rules created months ago that forward email externally
  • Guest accounts from a year-old project that still have access to sensitive SharePoint sites
  • A Conditional Access policy exclusion group that has grown from 3 users to 30
  • Legacy authentication being used by a single accounting application that nobody remembers setting up
  • Sensitivity labels that are configured but not actually being applied to any content
  • Admin role assignments that were supposed to be temporary but became permanent

These are not edge cases. They are the most common findings in M365 security assessments, and they are easy to miss when you are checking manually.

The Real Cost of Not Auditing

When an MSP skips or delays security assessments, the risk compounds:

  • Configuration drift: Settings change over time. Users get added to exclusion groups. New apps get connected. Without regular audits, your security posture degrades gradually and silently.
  • Compliance exposure: Clients in regulated industries (healthcare, finance, legal) need documented proof of security controls. If you cannot produce audit evidence, your client — and you — are at risk.
  • Breach liability: When a breach occurs and the investigation reveals basic misconfigurations that a standard audit would have caught, the MSP’s reputation and potentially their E&O insurance are on the line.
  • Lost revenue: Security assessments are a high-value service. If you are not offering them because they take too long, you are leaving revenue on the table.

What an Automated Security Audit Covers

A comprehensive automated M365 security audit should check:

Identity and Access (the most critical category):

  • MFA enrollment and enforcement status for every user
  • Conditional Access policy coverage and gaps
  • Legacy authentication usage
  • Admin role assignments and privilege creep
  • Guest account inventory and access review
  • Password policy compliance

Email Security:

  • SPF, DKIM, and DMARC configuration and alignment
  • Anti-phishing and anti-spam policy settings
  • Mail flow rules audit (especially external forwarding)
  • Safe Links and Safe Attachments configuration
  • Inbox rule audit for signs of compromise

Data Protection:

  • SharePoint and OneDrive sharing settings
  • External sharing activity and anonymous links
  • DLP policy configuration and coverage
  • Sensitivity label deployment
  • Retention policy settings

Collaboration Security:

  • Teams guest access and app permissions
  • Meeting policy settings
  • Channel creation governance

Compliance and Monitoring:

  • Unified audit log status
  • Alert policy configuration
  • Microsoft Secure Score with improvement actions
  • Compliance Manager score across applicable frameworks

How to Choose an Automated Audit Platform

Not all automation is equal. Here is what to look for:

  • Depth of coverage: How many settings and data points does it check? Surface-level tools miss the nuanced configurations where real risk lives.
  • Multi-tenant support: Can you manage all clients from one dashboard? MSPs need this.
  • Read-only access: The audit tool should never modify client environments. Read-only API access protects you and your clients.
  • Actionable reporting: Raw data is not useful. The output should prioritize findings by risk, explain why each finding matters, and provide specific remediation steps.
  • Client-ready reports: Can you hand the report directly to a client? Branded, professional PDF reports save hours of reformatting.
  • Framework mapping: Mapping findings to MITRE ATT&CK, CIS Benchmarks, or compliance frameworks adds credibility and context.
  • Speed: If an audit takes hours, you will not run them often enough. Minutes is the target.

How 365 Security Assessment Solves This

365 Security Assessment was built by MSPs, for MSPs. Here is what sets it apart:

  • 11,000+ data points analyzed per tenant across identity, email, data, collaboration, and compliance
  • 24,000+ expert-curated security rules derived from real-world enterprise audits
  • 100% read-only — the platform never modifies client environments
  • MITRE ATT&CK mapped findings for threat context
  • Comprehensive PDF reports ready to present to clients
  • Minutes, not hours to complete a full forensic-level audit

Whether you are a solo MSP managing 10 tenants or an MSSP with hundreds, automated security assessments let you deliver consistent, high-quality security services at scale.

Start your free assessment and run your first audit in under 10 minutes.

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