Office 365 Security Assessment

Secure Your Microsoft 365 Environment

Comprehensive security assessment of your Microsoft 365 (Office 365) environment covering Entra ID identity management, Exchange Online email security, SharePoint and OneDrive data protection, Teams collaboration security, and compliance posture. We identify misconfigurations, policy gaps, and data exposure risks across your entire M365 tenant using automated tooling and manual expert review.

Office 365Microsoft 365Security AssessmentEmail SecurityISO 27001CIS BenchmarksData ProtectionComplianceGDPR

What's Included

Comprehensive service features designed to meet your security and development needs.

Identity & Access Management Review

Audit Entra ID configuration, privileged role assignments, guest user access, risk-based sign-in policies, and authentication methods. Identify stale accounts, excessive Global Admin assignments, and missing security controls.

Email Security Assessment

Review Exchange Online anti-phishing policies, ATP Safe Links and Safe Attachments, mailbox forwarding rules, DMARC/DKIM/SPF configuration, transport rules, and Business Email Compromise protections.

Data Loss Prevention Audit

Evaluate DLP policies across Exchange, SharePoint, OneDrive, and Teams. Review sensitivity labels, information protection policies, insider risk management settings, and retention policies.

Collaboration Security Review

Assess SharePoint and OneDrive external sharing settings, anonymous link policies, Teams guest access, third-party app permissions, and OAuth consent configurations.

Conditional Access & MFA Evaluation

Test conditional access policy coverage and effectiveness. Identify MFA gaps, legacy authentication protocol usage, device platform spoofing vectors, and incomplete application coverage.

Audit Logging & Compliance Review

Verify unified audit log enablement, alert policies for critical changes, Microsoft Purview compliance posture, eDiscovery readiness, and security event retention configuration.

Key Benefits

Why organizations choose this service

Identify email security gaps and phishing risks

Prevent data leakage through collaboration tools

Strengthen identity security and MFA coverage

Achieve ISO 27001 and CIS M365 Benchmark compliance

Detect shadow IT and unauthorised app integrations

Receive actionable remediation with priority ratings

Our M365 Security Assessment Process

Our proven methodology for delivering office 365 security assessment

1
01

Scoping & Access Setup

Define assessment scope, establish read-only access to your M365 tenant, and identify critical workloads and data classifications.

2
02

Entra ID & Identity Review

Comprehensive review of identity configuration, authentication policies, privileged accounts, conditional access, and MFA enforcement across all applications.

3
03

Email & Communication Security

Assess Exchange Online security configuration, anti-phishing controls, mail flow rules, and email authentication records (DMARC, DKIM, SPF).

4
04

Data Protection & DLP Analysis

Evaluate data loss prevention policies, sensitivity labels, information barriers, and data governance across SharePoint, OneDrive, and Teams.

5
05

Collaboration & App Security

Review sharing settings, guest access policies, Teams configuration, third-party app permissions, and OAuth consent framework.

6
06

Reporting & Remediation

Deliver comprehensive report with executive summary, detailed technical findings, risk ratings, and prioritised remediation roadmap aligned to CIS M365 Benchmark.

Technologies We Use

Microsoft 365Entra IDExchange OnlineSharePoint OnlineMicrosoft TeamsMicrosoft DefenderMicrosoft PurviewM365SATMonkey365

Ready to Get Started?

Contact us today to discuss your office 365 security assessment needs and receive a custom proposal.