Microsoft 365 security — Exchange, SharePoint, Teams and OneDrive.
Microsoft secures the cloud; you own external sharing, mailbox delegation, Teams guest access, app consent and conditional access. WoneShield secures that layer — continuous SSPM plus expert assessment, hardening and monitoring.
Microsoft 365 security done right · mapped to CIS Microsoft 365 Benchmark
Why Microsoft 365 security
The risks Microsoft 365 won't fix for you.
External sharing sprawl
Anonymous and external links across SharePoint and OneDrive quietly expose sensitive files far beyond the people who should see them.
Identity & MFA gaps
Legacy authentication, weak conditional-access policies and unenforced MFA leave accounts open to takeover.
Over-consented OAuth apps
Third-party apps granted broad Graph permissions become a standing backdoor no one re-reviews.
The lifecycle
Evaluate. Plan. Deploy & harden. Monitor.
A complete Microsoft 365 security program — product plus specialists, not just a scan.
- 1
Evaluate
A full Microsoft 365 security assessment — configuration, access, roles and data exposure — mapped to CIS Microsoft 365 Benchmark.
- 2
Plan
A prioritized remediation roadmap and least-privilege design: what to fix first and the secure target state.
- 3
Deploy & harden
Implement the fixes and put guardrails in place — with our specialists alongside your team.
- 4
Monitor & enhance
Continuous drift detection so your Microsoft 365 stays secure between audits, not just on audit day.
How we connect
Agentless, read-first — no changes to your Microsoft 365.
Least-privilege API access; self-hostable for full data residency.
What we secure
Every layer of your Microsoft 365.
How it compares
Native tools score. We secure the whole Microsoft 365.
| Manual audit | Microsoft Secure Score | WoneShield | |
|---|---|---|---|
| Continuous (not point-in-time) | — | Partial | ✓ |
| Configuration, access & data coverage | Manual | Partial | ✓ |
| Mapped to CIS Microsoft 365 Benchmark | Manual | Partial | ✓ |
| Expert remediation, not just findings | Consultant | — | ✓ |
| Drift detection | — | — | ✓ |
| Unified with detection & GRC | — | — | ✓ |
Works with
Fits your Microsoft 365 and your workflows.
Why WoneShield for Microsoft 365
A Microsoft 365 security partner, not just a scanner.
Coverage, not just a score
Microsoft Secure Score gives a baseline. WoneShield delivers deep, continuous checks across Microsoft 365's configuration, access and data — and helps you fix them.
Continuous, not point-in-time
Microsoft 365 configuration drifts every day. WoneShield re-checks continuously, so a clean state stays clean.
Product + expertise
Automated posture plus specialists who assess, plan, harden and monitor — not a scanner you're left to interpret.
Audit-ready
Findings map to CIS Microsoft 365 Benchmark, ISO 27001 and SOC 2, and flow into Comply as evidence.
Part of the platform
Microsoft 365 security, powered by WoneShield.
Microsoft 365 is one of 13+ platforms WoneShield Posture secures — assess them together:
Pricing
Start free. Protect continuously.
Begin with a free Microsoft 365 security assessment. Ongoing protection from $750/month via WoneShield Posture. Large, multi-tenant and regulated estates are priced to your environment.
Free download
The Microsoft 365 Security Hardening Checklist
The settings, access and data controls to lock down in Microsoft 365 — a practical checklist used in real Microsoft 365 security reviews.
FAQ
Microsoft 365 security, answered.
Is Microsoft 365 secure by default?+
Microsoft secures the platform, but under shared responsibility your sharing settings, identity/MFA policies, app consents and admin roles are yours to secure — and that's where most M365 incidents start. WoneShield secures that layer continuously.
How is this different from Microsoft Secure Score?+
Secure Score is a useful baseline score. WoneShield gives deep, continuous checks across SharePoint/OneDrive sharing, Exchange rules, Teams guest access, OAuth consents and conditional access — mapped to the CIS M365 Benchmark, with expert remediation.
Do you cover external sharing in SharePoint and OneDrive?+
Yes — external and anonymous sharing exposure is one of the most common M365 risks and a core part of every assessment and continuous check.
Is it agentless?+
Yes — WoneShield connects to Microsoft 365 via API with read-first, least-privilege access. No agents.
How much does Microsoft 365 security cost?+
Start with a free Microsoft 365 security assessment. Ongoing protection starts at $750/month via WoneShield Posture, with custom pricing for large or multi-tenant estates.
Free Microsoft 365 security assessment
See what's exposed in your Microsoft 365 — free.
Connect Microsoft 365 (read-first, agentless) and get a CIS Microsoft 365 Benchmark-mapped report with a prioritized remediation roadmap. No credit card, no changes to your environment.
Secure your Microsoft 365 with WoneShield
Start with a free assessment, or get a guided demo tailored to your stack.