Microsoft 365 Security Review
Secure your Microsoft 365 environment as your cloud footprint expands.
Is your Microsoft 365 environment leaving you exposed?
As your business grows in the cloud, so does your attack surface. Misconfigurations, overly permissive access, and unused features in Microsoft 365 can put your organization at risk of data loss and productivity disruptions.
ProArch’s Microsoft 365 Security Review evaluates your environment across 29 critical security controls to uncover gaps before attackers do.
You’ll walk away with a prioritized roadmap, customized to your budget and business risk, so you can secure what matters most.
How the Microsoft 365 Security
Review Works
Step 1
Environment Analysis
Your Microsoft 365 tenant is evaluated against 29 critical controls using our “do-first” security priorities, Microsoft Secure Score, and Industry best practices.
Step 2
Environment Analysis
Every control is categorized by risk level—Critical, High, Medium, or Low—to help you act on what matters most, first.
Step 3
Hardening Plan
You’ll receive a detailed report with misconfigurations & security gaps, remediation steps, and expected impact of each change impact.
Step 4
Implementation Options
As a follow-on engagement, we will implement the Microsoft 365 security recommendations.
Microsoft 365 Security Review Sample Report
Require MFA for Administrative RolesCategory Control: Configuration |
|
Description | You should enable MFA for all your admin accounts (except one break-glass account) as a breach of any of these accounts can lead to an attacker having a high level of administrative access within your organization. |
Findings | 1 out of 2 administrators are enrolled in MFA, no break-glass administrator accounts exist. |
Current Status |
Not Implemented
Already Implemented
|
Critical
Multi-factor Authentication Global Admin Configuration Email Protection
High
Sign-in Policies Audit Logging Mailbox Security
Medium
Sharing Policies Spam Filters Suspicious Activity Alerts
Low
Custom Login Portal Application Control Mail Flow Rules
Risk Impact Level
We categorize each control by risk level so you understand what needs attention first.
Findings
Includes unique details for each control that will assist with remediation.
Current Status
Documents if the control is not implemented or already implemented. In a separate engagement, ProArch will implement security hardening control recommendations from the Microsoft 365 Security Review.


Stronger
Microsoft 365 Security
Starts Here
- Get clear, actionable steps your team can actually use
- Recommendations prioritized by business risk, not just a Secure Score
- Tailored to the Microsoft 365 tools and areas that matter most to you
- Maximize the value of your existing Microsoft investment
Trusted
By Microsoft
As a Microsoft Solutions Partner and member of the Microsoft Intelligent Security Association (MISA), ProArch is recognized for our deep expertise in Microsoft 365 security.
Cybersecurity Services
As a top Microsoft Partner, we help you maximize your Microsoft investment—driving digital transformation, operational efficiency, and stronger security.
Microsoft Capabilities
We provide 24/7 SOC operations, MDR, and tailored security strategies—covering IT, OT, AI, data, and cloud for comprehensive, scalable, end-to-end protection.
Microsoft 365 Security Review FAQs
What is the Microsoft 365 Security Review?
It’s a structured evaluation of your Microsoft 365 environment against security best practices. The result: a clear snapshot of your current state and a plan to fix misconfigurations, reduce risk, and harden your defenses.
What security controls are covered?
The security controls reviewed as part of the Microsoft 365 Security Review are a combination of ProArch’s do-first controls, Microsoft 365 Security Best Practices, and industry-standard best practices.
We evaluate identity, access, email, configuration, and behavioral security controls, including
- Multi-Factor Authentication (MFA)
- Global Admin Configuration
- Mailbox Security
- Audit Logging
- Suspicious Sign-In Alerts
- Application Permissions
- Mail Flow Rules
- …and more
What is the final deliverable?
A 10+ page report outlining:
- Your current security posture
- Misconfiguration and risk findings
- Prioritized remediation actions
We’ll walk you through the findings so you know exactly where to focus.
Can ProArch fix the issues identified?
Yes. Our Microsoft 365 Security Hardening engagement builds on the review to implement the right security policies and configurations for your business.
As a top Microsoft Partner with advanced specializations in security, we consider existing controls and additional licensing costs to identify best fit options for hardening.
Is the Microsoft 365 Security Review customizable?
Yes. Depending on your organization’s requirements, ProArch can incorporate specific areas to assess that may not be covered under our standard assessment criteria.
How much does the Microsoft 365 Security Review cost?
The Microsoft 365 Security Review typically takes 16-20 hours at $200/hour. Final cost depends on scope and environment complexity.