SharePoint is where data quietly over-shares. Siemserva audits the settings that decide who can reach what.
SharePoint Online powers collaboration, and oversharing. External sharing defaults, anonymous links, and admin settings determine your exposure. Siemserva audits SharePoint sharing and access configuration so you can see and close the gaps.
Siemserva runs standalone for full Microsoft 365 posture across configurations, logs, and CVEs, or right alongside SharePoint Online.
| What SharePoint Online does well | Where teams want more |
|---|---|
| Powerful collaboration and document management at scale. | External sharing posture is easy to misconfigure and hard to audit at scale. |
| Granular external sharing and access controls. | Site-level settings can quietly override organization intent. |
| Admin center settings for organization-wide guardrails. | No native prioritization or compliance mapping of sharing risk. |
| Sensitivity-label integration with Purview. | Usage and exposure signals are scattered. |
| Capability | SharePoint Online | Siemserva |
|---|---|---|
| External sharing posture verdict | Manual | Native checks |
| Tenant vs. site setting drift | Hard to see | Surfaced |
| Compliance mapping | No | MCSB, CISA SCuBA |
| Unified data-exposure view | No | Yes |
Comparison reflects general capabilities at time of writing and is provided for research. Vendor features change; verify current specifics with each vendor.
Every finding, and the full graph behind it, is yours. Through the Senserva SDK and the Claude MCP you get complete access to the underlying Siemserva data, so you can query it, extend it, and build your own checks, reports, automation, and integrations on top. Nothing is locked away in a vendor cloud, and the data stays with you.
Siemserva does not just record pass or fail. It models your target environment, the identities, devices, applications, policies, and how they relate, as a queryable graph. That makes the data a foundation for new work: custom analysis, threat hunting, and automation, not a static checklist you read once and set aside.
SharePoint Online is the content backbone behind Microsoft 365, Teams files, OneDrive, and intranet sites all sit on it. Its strength, frictionless sharing, is also its biggest risk. Anonymous and company-wide links, default sharing set too broadly, and guest access that outlives the project create exposure that no one set out to allow.
Tenant-level and site-level sharing settings decide whether users can create anonymous links, share with any external domain, or only with allowed partners. Link expiration, default link scope, and limits on who can share are the levers that keep collaboration open without leaving content world-readable. Aligning site-level settings under the tenant ceiling is where most mistakes hide.
Broken permission inheritance, direct user grants instead of groups, and sites with hundreds of unique permissions make it nearly impossible to answer who can see what. Over time this sprawl is the real governance problem, and it is exactly what an attacker, or an AI assistant grounded on your content, will surface.
Microsoft Purview sensitivity labels and data loss prevention extend into SharePoint to classify, encrypt, and restrict sharing of sensitive content. Labels that travel with the file and DLP policies that block risky sharing turn SharePoint from an open share into governed storage, and provide the evidence auditors look for.
Only through reviewed, agentic remediation that you approve. Findings always come first, with the evidence and the recommended fix.
No agents and no cloud service. Siemserva reads your tenant through Microsoft's APIs and runs on Windows or Mac. You can explore the whole product first on the free Advanced Microsoft 365 Security Simulator, with no access to your environment at all.
Yes. The Advanced Microsoft 365 Security Simulator and the game let you explore a full scan, the findings, the AI, and the reports for free. Scanning your own tenant uses a license key, and 501(c)(3) nonprofits get the full version free.
Yes. It supports multi-tenant and MSP fleets, with bulk tenant security audits and unified, client-ready reporting across many customers.
Siemserva is built for AI from the ground up and also runs fully without it. Turn it on for AI-enhanced reports and to run the product from Claude, or the AI of your choice, via our market-leading MCP. You bring your own model, so there is no AI markup, and the rich data model keeps calls and cost low.
"The Senserva team is great to work with, they are responsive and could find any data in Azure we needed. It's amazing really."
John McCann, CEO, Satisent, A Gamma CompanySee exactly what Siemserva finds on a rich, realistic simulated tenant, no access to your environment needed. Launch it right after install, or ask for a free key. Teams report cutting Microsoft 365 and Azure hardening time by up to 80 percent.
Launch the Simulator, freeWe use Google Analytics cookies to understand site traffic. No findings, scan data, or tenant data are sent. Privacy policy.