External Links Sharing
In Office 365, “anyone links” spread fast, and guest access never really leaves. 1Security helps organizations manage external sharing settings across Microsoft 365 by detecting risky shared links, restricting external users, and locking down exposure to keep collaboration secure.
What is the challenge?
Doing It with 1Security
Eliminate hidden exposure. 1Security gives you full visibility and automated control over Microsoft 365 external sharing, showing where shared links exist, who the external users are, and how to fix issues before they lead to data leaks.
Complete Link Inventory
Instantly see every external and anonymous links across SharePoint Online, Teams, and OneDrive. Site owners can review file or folder access with full visibility of owners, permissions, and sensitivity context.
Guest Access Tracker
Detect inactive or orphaned guest accounts, expired external users, and existing guests with lingering permissions. 1Security helps configure guest sharing policies and remove access safely.
Sensitive Data Correlation
Identify which shared files and folders contain confidential or sensitive data such as payroll information or regulated documents. Combine Microsoft Purview labels with 1Security’s visibility to detect risky external collaboration.
Automated Risk Alerts
Receive real-time notifications when users share files externally, create “anyone links,” or change external sharing settings. Admins can take immediate action through the SharePoint admin center or 1Security dashboard.
Policy Enforcement Engine
Automatically remove risky links, enforce expiration dates, and standardize external sharing settings across SharePoint sites, Microsoft Teams, and OneDrive.
Compliance & Audit Reports
Export audit-ready reports showing link history, external collaboration activity, and guest access control for ISO 27001, GDPR, and HIPAA compliance.
Solving It with Other Methods
Most organizations rely on native Microsoft 365 tools, reports, or scripts to manage external sharing — but these methods don’t actually understand access. They address isolated symptoms instead of governing permissions intelligently.
Why External Sharing Control Matters
1Security transforms external sharing from a blind spot into a strength. With unified visibility, continuous monitoring, and automated reporting, organizations reduce risk, prove compliance, and enable secure collaboration at scale.
"1Security helped us uncover over 4,000 externally shared links across legacy SharePoint sites in just one day. What used to take weeks of manual checks now runs automatically every night."
Higher Ed Security Lead, EU University"During our ISO 27001 preparation, 1Security helped prove control over external sharing across all SharePoint and Microsoft Teams sites. Auditors called the reports exceptionally clear."
IT Director, Financial Services Firm"Before 1Security, we didn’t know how many guest users still had access. The platform flagged more than 800 risky external shares and automatically removed them, closing a major compliance gap."
Microsoft 365 Administrator, Healthcare OrganizationWho Benefits Most?
1Security supports organizations of all sizes — from highly regulated industries to fast-growing mid-size firms.
Works seamlessly with your ecosystem
1Security connects natively with the tools you already use — giving you full visibility and control without adding complexity.
Frequently asked questions
Everything you need to know about the product.
Can 1Security detect all externally shared files in Office 365?
Yes. 1Security continuously scans SharePoint Online, Microsoft Teams, and OneDrive to detect external links, guest access, and sharing content across all active sites.
How does it simplify compliance audits?
It generates audit-ready evidence showing which SharePoint sites, Microsoft 365 groups, and Teams channels are shared externally and when guest access was revoked.
Does it work alongside Microsoft Purview or DLP?
Yes. 1Security complements these tools by adding visibility into who external users are and how they share content or files across Microsoft 365.
What happens if a file or folder is shared externally by mistake?
1Security alerts you in real time, identifies the site owners responsible, and lets you revoke or expire the shared link immediately through the admin center.
Is 1Security compatible with hybrid or multi-tenant Microsoft 365 setups?
Yes. It integrates across Microsoft 365 tenants, consolidating visibility of external sharing, guest users, and site-level access controls in one unified dashboard.
Do you support ISO 27001, SOC 2, HIPAA, and GDPR work?
Yes. 1Security maps findings and evidence to common control frameworks, helping organizations demonstrate compliance more efficiently.
Can non-technical stakeholders use it?
Yes. Plain-language reports and read-only views make it easy for compliance, legal, and business stakeholders to see the evidence behind findings without needing admin rights.
Is this only for large enterprises?
No. While designed for complex environments, 1Security is equally valuable for mid-sized organizations running Microsoft 365 or Office 365 that need strong visibility into access, activity, and compliance.
Gain visibility. Ensure compliance. Boost productivity.
Stop guessing who has access to your sensitive data. With 1Security, you gain the visibility, automation, and confidence needed to protect your Microsoft 365 environment.