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AI-powered Data Loss Prevention (DLP) for Microsoft SharePoint Online

Automatically detect and secure sensitive data in SharePoint Online while preventing unauthorized sharing and data exfiltration.

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The Data Loss Prevention Challenges in SharePoint Online

SharePoint Online serves as your organization's content hub but creates unique security risks that traditional solutions fail to address.

Sensitive data exposure

PII, PHI, PCI and credentials proliferate across document libraries, lists, and pages with no visibility into which sites contain exposed data or which departments create the greatest compliance risk.

Intelligent, automated policy enforcement.

SharePoint's hierarchical permission model enables sensitive content to be inadvertently shared through site permissions, library access, or document-level sharing without proper oversight of inheritance relationships.

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Endpoint exfiltration vulnerability

Users sync document libraries to local devices or download files directly and subsequently upload them to personal cloud storage with no visibility into what content leaves your protected SharePoint environment.

Key Benefits

AI-powered

Pre-trained LLM and Computer Vision models detect sensitive content with 95% precision - even identifying data within complex lists, versioned documents, and embedded media that SharePoint's native content scanners consistently miss.

Complete Data Lineage

Track sensitive files from SharePoint to endpoint to destination - maintaining visibility even after documents are downloaded via OneDrive sync or browser. Detect when SharePoint content containing sensitive data is subsequently uploaded to unauthorized cloud services, personal accounts, or shadow IT applications.

Comprehensive coverage

Monitor document libraries, lists, pages, and site assets in real-time and across historical content. Detect every instance of exposed sensitive data regardless of format or location in your SharePoint tenant.

Streamline Security Operations

Instantly adjust permissions, apply labels, delete content based on sensitivity. Apply consistent protection without disrupting collaboration workflows or breaking permission inheritance.

Human Firewall

Coach content owners with monitor-only policies that educate without blocking productivity. Enable secure sharing through intuitive controls to manage site access, disable downloads, and protect sensitive documents when collaborating externally.

Case studies

Loved by innovative security teams

95%

precision

10x

lower TCO

80%

self-resolution

Testimonials

“Nightfall is reliable. When it says there’s a detection, we trust that detection. For people in my field, that’s a big factor. You don’t want to waste time chasing ghosts.”

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Victor Sogaolu

Staff Security Engineer @Snyk

Testimonials

“By preventing sensitive data from reaching our code repositories, we reduce the chances of data exposure. For us, DLP is the ability to reduce risk for the company and allows us to build customer trust.”

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Shaun DeWitt

Director of Security Operations @Klaviyo

Testimonials

“Nightfall protects us from outside threats and inside vulnerabilities. It has been fantastic in helping us identify programmatic and procedural issues on our teams so that we can remediate them, rather than simply mitigate them.”

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Robert Former

CISO @Acquia

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Nightfall AI DLP for Microsoft SharePoint Online

See how Nightfall can secure your SharePoint environment, prevent inappropriate sharing, and stop data exfiltration in minutes with no disruption to your team collaboration.