SharePoint and OneDrive security
SharePoint Security Services
SharePoint and OneDrive often expose more data than business owners realize. External sharing, public links, guest users, and over-permissioned sites create risk that grows over time.
SharePoint and OneDrive are powerful collaboration tools that ship with permissive defaults. Every shared link, every guest user, and every broadly-permissioned site is a potential exposure point. Over months and years, these accumulate into significant risk.
Common SharePoint Risks
Most small businesses do not know how much data is shared, with whom, or for how long. SharePoint risks tend to grow silently.
Files shared with anyone via public links
External guests with access that was never revoked
Sites where everyone in the company has edit access
Sensitive files in over-permissioned folders
Old user accounts that still have file access
Shared folders inherited from past projects
Forwarded sharing chains across multiple users
Default permissive sharing on new sites
Why SharePoint Security Matters
Default sharing settings often allow external access, public links, and broad permissions that expose sensitive business data.
Customer data and contracts in shared folders
Financial documents accessible to too many users
HR and employee data in OneDrive folders
Strategy documents shared with old contractors
Proprietary files exposed through public links
Old client work visible to new employees
What We Review
A practical review of how data is shared and who has access. We document findings and recommend cleanup priorities.
Site collection inventory and ownership
Sharing settings at tenant and site level
External sharing configuration
Public link audit
Guest user inventory and access review
Sensitive site permission review
OneDrive sharing patterns
Default sharing behavior for new content
Access lifecycle controls
What We Help Clean Up
After review, we help prioritize and clean up the highest-risk findings. Cleanup is scoped, documented, and reviewed.
Revoke unnecessary sharing
Remove public links, expired access, and overly broad permissions on high-sensitivity sites.
Tighten default sharing
Adjust tenant and site-level sharing defaults so new content does not inherit risky settings.
Document ongoing controls
Establish review cadence and ownership so sharing risk does not grow back over time.
AI and Copilot Exposure Considerations
AI tools like Microsoft Copilot can access anything the user can access. Over-sharing in SharePoint becomes a bigger risk when AI features are enabled.
Copilot inherits the permissions of the user invoking it
If too many users have access to sensitive data, Copilot surfaces it to them
Broad sharing means broad AI exposure
Pre-Copilot, sharing review is a practical prerequisite
Ongoing sharing monitoring is increasingly important
How This Connects to Tecnico Ready and Tecnico Defend
SharePoint security review is part of the broader Microsoft 365 security work we do.
Tecnico Ready
SharePoint and OneDrive sharing review is part of the Tecnico Ready security assessment.
Tecnico Defend
Ongoing monitoring includes sharing changes, new external access grants, and permission drift over time.
Cleanup projects
Larger cleanup work is scoped as a project after the initial review, with clear deliverables and timelines.
Frequently Asked Questions
Why is SharePoint a security risk?
Default sharing settings often allow external access, public links, and broad permissions that expose sensitive business data over time.
Does this include OneDrive?
Yes. SharePoint and OneDrive share the same underlying permissions and sharing model. We review both together.
Is SharePoint review included in Tecnico Ready?
Yes. SharePoint and OneDrive sharing review is part of the Tecnico Ready security assessment.
Can you fix sharing issues for me?
Yes. Cleanup work is scoped as a separate project or included in ongoing Tecnico Defend service depending on the size.
Will this affect how my team works?
Cleanup is scoped to remove high-risk sharing without disrupting legitimate collaboration. We work with you to understand normal patterns first.
Find out what your SharePoint is exposing
Book a Security Fit Call to start a SharePoint and OneDrive sharing review.