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// CIS M365 Benchmark Scan

Secure Microsoft 365 with confidence.

An independent configuration audit of your M365 tenant against the CIS Benchmarks: the hardening standard used by governments and enterprise security teams worldwide. We surface every misconfiguration that matters, prioritised by real risk.

// Why this matters

Default settings are not secure settings.

Microsoft 365 ships with usability defaults, not security defaults. Out of the box, your tenant likely permits external file sharing to anyone with a link, legacy authentication protocols, user-driven app consent, and admin accounts without MFA. Attackers know this. The CIS Benchmarks define what "secure" actually looks like, and our scan tells you precisely where you sit against that standard.

EDR alone does not secure Microsoft 365.
Endpoint detection tools cannot see identity-layer attacks, misconfigured cloud policies, or OAuth abuse occurring entirely within the M365 platform.
68%of cloud breaches stem from misconfiguration, not zero-days
3 of 4M365 tenants fail multiple CIS Level 1 controls on first audit
€4.45Maverage cost of a data breach (IBM Cost of a Data Breach Report)
// How it works

A clear view of your security posture.

The scan provides an independent, read-only assessment of your Microsoft 365 environment. We don't install agents, we don't touch endpoints, and we don't change a single setting in your tenant. We simply read the configuration and compare it to the CIS standard.

STEP 01 — CONNECT

Read-only access

A least-privilege connection is established to your tenant. The access is scoped, time-bound, and fully under your control: revoke it the moment the audit ends.

STEP 02 — ASSESS

CIS benchmark comparison

Your tenant's live configuration is measured against the CIS Microsoft 365 Foundations Benchmark, covering identity, email, data, collaboration, logging, and admin governance.

STEP 03 — REPORT

Prioritised findings

You receive an executive summary plus a full findings register, with each issue risk-rated and accompanied by clear remediation guidance your team can act on.

// Coverage

Audited against the full CIS Benchmark.

Every domain that matters for a secure cloud workplace. Identity, data, communications, and governance. Assessed end-to-end.

// IDENTITY

Entra ID & Access

The blast radius of every M365 breach starts here. We verify MFA enforcement, conditional access posture, privileged role hygiene, and the killing of legacy auth.

// EMAIL

Exchange Online

91% of cyber attacks start with email. We check Safe Links, Safe Attachments, anti-phishing policies, and your full email authentication stack.

// DATA

SharePoint & OneDrive

External sharing is where data quietly walks out the door. We audit sharing scope, guest expiration, sensitivity labels, and OneDrive sync controls.

// COLLAB

Microsoft Teams

Teams has become the soft underbelly of M365 — external federation, anonymous meeting joins, and third-party app sprawl. We surface every gap.

// VISIBILITY

Audit & Compliance

You can't respond to what you can't see. We verify the unified audit log, mailbox auditing, alert policies, and retention — the foundation for any IR effort.

// GOVERNANCE

Admin & Applications

Standing global admins and unrestricted app consent are how attackers go from foothold to full tenant compromise. We audit every shortcut.

// Deliverables

Executive-ready, engineer-actionable.

You receive a comprehensive report that gives your organisation full visibility into your Microsoft 365 security posture. With clear, prioritised actions to reduce risk.

Executive summary report

A high-level overview of your security posture, suitable for board and leadership review.

Technical security findings

Detailed findings mapped to specific configurations and control gaps in your tenant.

CIS benchmark mapping

Every finding mapped to the relevant CIS Microsoft 365 Benchmark control.

Risk prioritisation matrix

Findings ranked by risk severity to guide remediation effort and investment.

Remediation recommendations

Practical, actionable steps to address each identified security gap.

Strategic improvement roadmap

A phased roadmap to continuously improve your Microsoft 365 security posture over time.

See what a real CIS Microsoft 365 Benchmark assessment looks like.

Request a sample report to see how misconfigurations, risks, and remediation priorities are presented in a real-world assessment.

Request a sample report
// Why SBL Cybermonitoring

Independent security validation.

Many organisations already use Microsoft Defender, SentinelOne, or MDR services — but still lack assurance that Microsoft 365 itself is securely configured.

Our assessment validates whether your security controls are properly configured, consistently applied, aligned to best practice, and resistant against modern attack techniques.

  • Security gaps & misconfigurationsIdentified, documented, and prioritised.
  • Weak identity controlsMFA, Conditional Access, and privileged access exposure surfaced.
  • Missing Defender protectionsGaps in Safe Links, Safe Attachments, anti-phishing, and ASR rules.
  • Configuration drift over timeVisibility into how your tenant has deviated from baseline.
  • AI / Copilot readiness risksData exposure and governance gaps relevant for AI rollouts.
// FAQ

Practical questions, practical answers.

Why CIS specifically? Why not just rely on Microsoft Secure Score?

Secure Score is Microsoft auditing Microsoft. It's useful, but it weights heavily toward features that drive license upgrades. CIS Benchmarks are vendor-neutral, consensus-developed by security experts, and explicitly mapped to NIST CSF, ISO 27001, and PCI DSS. They tell you what's actually secure, not what Microsoft wants to sell you.

What does the deliverable look like?

You receive a comprehensive report containing an executive summary suitable for board-level review, a technical findings register mapped to specific CIS controls, a risk-prioritisation matrix to guide remediation effort, and clear recommendations for each gap. The report is yours to act on, internally or with your existing IT partner. Request a sample report »

Which licenses do we need?

Any M365 plan. We tailor the control set to your license tier; a Business Standard tenant won't be marked down for missing Defender for Office 365 features it doesn't license. The report reflects what you actually have available.

How does this help with compliance audits?

The deliverable maps every finding to the relevant ISO 27001, NIS2, NEN 7510, and GDPR control. Auditors love it. It's a single document that demonstrates technical due diligence on your most-used cloud platform.

Get started

Request a sample report or a sensor pilot.


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Sample report from SBL Cybermonitoring