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MICROSOFT 365 SECURITY AUDIT

Microsoft 365 Security Audit

ComprehensiveMicrosoft365securityauditcoveringConditionalAccess,Exchange,SharePoint,andDefender.

Overview

What Is a Microsoft 365 Security Audit?

A Microsoft 365 security audit is a comprehensive security assessment of your organization's Microsoft 365 and Entra ID (formerly Azure AD) security configuration, policies, and access controls. Our experts evaluate Conditional Access policies, Exchange Online settings, SharePoint and OneDrive permissions, Teams security configurations, and Defender settings to identify security misconfigurations that could lead to data exposure, account compromise, or compliance violations.

Why Do You Need It?

Microsoft 365 is a complex cloud platform with hundreds of security-critical settings spread across multiple admin portals. Default configurations prioritize usability over security, leaving many tenants with overly permissive sharing policies, weak authentication requirements, and insufficient monitoring. A single misconfigured Conditional Access policy or an overly permissive SharePoint site can expose sensitive data organization-wide. A dedicated Microsoft 365 security audit ensures your M365 tenant is hardened according to Microsoft security baselines and industry best practices.

Close security gaps in Conditional Access and MFA coverage
Fix external sharing security issues in SharePoint, OneDrive, and Teams
Secure Global Administrator accounts and PIM-eligible roles
Free re-audit within 30 days after hardening
Coverage

What We Audit

Our Microsoft 365 audit covers all critical Microsoft 365 security configuration areas across the tenant.

Entra ID (Azure AD) configuration & Conditional Access policies
Multi-factor authentication (MFA) enforcement & legacy authentication blocking
Exchange Online security & email authentication security (SPF, DKIM, DMARC)
SharePoint & OneDrive sharing policies and permissions
Microsoft Teams guest access & external sharing controls
Microsoft Defender configuration & alert policies
Privileged role assignments & administrative access
Methodology

Our Methodology

A Microsoft 365 audit is performed in a completely read-only mode: a Global Reader or Security Reader account plus Graph API access is used to review every security-relevant setting across Entra ID, Exchange, SharePoint, Teams, and Defender — then findings are mapped to the CIS Microsoft 365 Benchmark and the relevant compliance framework.

Scoping & Read-Only Access

The tenant, licensed services (Exchange, SharePoint, Teams, Defender, Purview), and compliance framework in scope are defined, and a read-only Global Reader or Security Reader account plus Graph API access is set up. Nothing in the tenant can be changed and access is revoked when the audit finishes.

Our Services
Process

Testing Lifecycle

Every M365 engagement follows a structured audit lifecycle — scoping and read-only access, Entra ID and Conditional Access review, Exchange/SharePoint/Teams hardening review, privileged role analysis, Defender coverage check, and a CIS-mapped hardening playbook followed by a free re-audit after you apply the fixes.

01Scoping & Read-Only Access
02Entra ID & Conditional Access
03Exchange, SharePoint & Teams
04Privileged Roles & Delegation
05Defender & Monitoring
06CIS-Mapped Playbook & Free Re-Audit
FAQ

Frequently Asked Questions

Ready to Get Started?

Contact us to discuss your security testing needs.

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