Microsoft 365 Security Audit Service

Our audit reviews your entire Microsoft 365 tenant against Microsoft's security benchmarks and CIS controls. This includes Conditional Access policies, MFA enforcement, legacy authentication status, mailbox delegation, sharing permissions, admin role assignments, data loss prevention rules, and Defender configurations. Only 40% of UK businesses have two-factor authentication enabled (DSIT 2025), and our audit consistently uncovers MFA gaps alongside dozens of other misconfigurations.

Secure Score is Microsoft's built-in metric that rates your tenant's security posture on a percentage scale across identity, data, devices, and applications. Our audit maps every Secure Score recommendation to a prioritised remediation action, categorised by risk impact and implementation effort. Most organisations see a Secure Score increase of 30 to 50 points after implementing our audit recommendations, significantly reducing their attack surface.

We recommend a comprehensive M365 security audit at least annually, with quarterly reviews of critical controls such as Conditional Access, admin accounts, and sharing policies. Microsoft frequently updates security features and defaults, so configurations that were adequate six months ago may now leave gaps. Given that 43% of UK businesses experienced a breach or attack in the past year (DSIT 2025), regular audits ensure your tenant keeps pace with evolving threats.

Yes. Our audit delivers a prioritised remediation report with step-by-step guidance for each finding. We offer hands-on remediation where our engineers implement the changes directly in your tenant, typically completing all critical and high-priority items within five business days. This includes enforcing MFA, disabling legacy authentication, tightening Conditional Access policies, and configuring Defender settings to close identified security gaps.

The audit itself is non-disruptive — we use read-only access to review your tenant configuration and generate findings. No changes are made during the audit phase. When remediation begins, we schedule changes that might affect users, such as enforcing MFA or disabling legacy protocols, during agreed maintenance windows with clear staff communications. With the average disruptive breach costing £3,550 (DSIT 2025), brief policy adjustments are far less disruptive than a security incident.