Comprehensive Microsoft 365 security assessment of your tenant: identity, email security, data protection, and compliance. CISA-certified auditors identify misconfigurations before attackers do.
Get Your QuoteAltius IT's Microsoft 365 security audit goes beyond basic checks. Our CISA-certified auditors conduct a comprehensive Microsoft 365 security assessment of your entire tenant to identify hidden misconfigurations, security gaps, and compliance blind spots that could expose your organization to cyber threats.
Most businesses rely on Microsoft 365 for email, collaboration, document storage, and communication, but default Microsoft 365 settings are not designed for maximum security. Misconfigurations in identity, sharing, and email policies leave organizations vulnerable to phishing attacks, account takeovers, business email compromise, and data breaches. Because Microsoft 365 holds your email, your files, and your identity directory, its tenant settings are the cloud security controls most organizations depend on most. Our assessment identifies exactly what to change so your Microsoft 365 environment can be securely configured, properly monitored, and aligned with your compliance requirements.
Default Microsoft 365 settings are built for convenience, not security. We review each area against the CIS Microsoft 365 Foundations Benchmark and Microsoft’s own security guidance.
A Microsoft 365 security assessment is the right engagement for any organization that relies on Microsoft 365 for email, file storage, collaboration, or communication. It is especially valuable for:
Our Microsoft 365 security assessment can be performed as a standalone engagement or combined with other Altius IT services for broader coverage:
Altius IT's reports provide specific recommendations and detailed steps you can take to address any identified security vulnerabilities and misconfigurations in your Microsoft 365 environment. Each finding includes a severity rating, evidence (configuration screenshots, policy status), and clear remediation instructions. After delivery of our reports, Altius IT provides three months of free support to answer any questions you may have.
Show clients and partners that an independent certified auditor has reviewed your Microsoft 365 tenant. As Certified Information Systems Auditors, we can issue an Auditor Opinion Letter documenting our opinion of the configuration we reviewed.
Altius IT provides a certified auditor with each engagement:
Our proposal provides you with detailed information so you know exactly how we will help you:
A well-defined audit process is the foundation of any effective Microsoft 365 security assessment. Our structured approach ensures that your tenant configuration, policies, and security controls are thoroughly evaluated.
The audit team works with key stakeholders to define scope, clarify objectives, and identify critical workloads and users to be reviewed. We establish a baseline understanding of your current Microsoft 365 deployment, licensing tier, and existing security configuration before assessment begins.
Our auditors conduct a comprehensive review of your Microsoft 365 tenant using a combination of manual configuration analysis and automated tooling. Every workload is examined: Entra ID, Exchange Online, SharePoint, OneDrive, Teams, Defender for Office 365, Intune, and the compliance center.
We deliver a detailed findings report with severity ratings, configuration evidence, and step-by-step remediation guidance. Your Microsoft Secure Score is benchmarked and mapped against the CIS Microsoft 365 Foundations Benchmark. Three months of post-audit support is included.
We need read access to review configurations, typically through a dedicated account with global reader and security reader roles. We do not change settings in your tenant; findings and remediation steps are delivered to your team to apply.
Secure Score is a useful starting point, but it measures Microsoft’s own recommendations and treats them equally. We review your tenant against the CIS Microsoft 365 Foundations Benchmark, look at how settings interact with how your organization actually works, and prioritize findings by risk.
All business and enterprise plans. Some controls, such as Privileged Identity Management or Defender for Office 365 Plan 2, depend on your license, so we note where a gap is a configuration issue and where it would require a license change.
No. The review is read-only and does not change settings, so users are not affected while it takes place.
Unlike a security consultant, Altius IT is certified as a Certified Information Systems Auditor to perform a security audit of your environment and issue reports and recommendations to secure your systems. Altius IT has been featured in 40+ publications and nationwide media outlets.
Uncover security gaps in your Microsoft 365 tenant that default settings and internal reviews miss.
Meet HIPAA, SOC 2, ISO 27001, PCI DSS, NIST, and CMMC requirements with documented evidence.
Safeguard your users, mailboxes, SharePoint, and Teams from phishing, account takeover, and data leakage.
Every engagement includes follow-up support to ensure vulnerabilities are properly mitigated.
