AI Moves Your Data. Nightfall Controls It.
Control data movement across AI agents, MCP servers, endpoints, and SaaS—without slowing innovation. Nightfall gives you real-time visibility and control over how sensitive data moves — and prevents what shouldn't leave. Legacy data security can't see or stop this.
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Securing data for the world’s most innovative organizations:

Why Now
AI Broke Legacy DLP. It Wasn't Built for This.
Legacy DLP wasn't designed for how your data moves today. What real customers tell us about where Legacy DLP fails
The Nightfall Experience
See Risk Across Your Entire AI Environment
One unified view of how data moves—and where to stop it.







What our customers say
Trusted by Teams Securing AI at Scale
95% Detection Precision
Eliminate alert fatigue with industry-leading accuracy that identifies real threats.
20x Average ROI
Save time and money with AI-based detection, investigation, and response.
Estimate your ROI
80% Automated Remediation
Four in five incidents resolved through automation or employee self-remediation.
Testimonial
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.
Victor Sogaolu
Staff Security Engineer at Snyk
Testimonial
We want to allow our folks to use the power of generative AI but in a safe and approved way. Nightfall gently redirects our people to the safe gen AI sites and helps us by blocking attempts from folks putting PII or customer data into ChatGPT and other tools.
Jay Crumb
Head of Security at Unit21
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David Patrick
Director of Security and Compliance at Neural Payments
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Pierre Lazarus
Technical Operations Manager at Telnyx


Frequently Asked Questions
What is Nightfall, and how does its technology work?
Nightfall is the AI-native DLP platform that prevents sensitive data exposure and exfiltration across SaaS, endpoints, email, browsers, and AI apps. At our core are 100+ AI-based models, LLM based file classifiers and Computer Vision models that classify content with 95% accuracy - far surpassing legacy solutions stuck at 5-25%. We combine content inspection with AI-based data lineage tracking that traces information from source to destination, understanding risk based on context, not just content patterns. API-based SaaS integrations deploy in minutes, while lightweight endpoint agents and browser plugins provide comprehensive coverage without disrupting productivity. Our platform learns continuously, automatically improving detection and reducing false positives over time.
Which problems does Nightfall solve better than legacy DLP?
Nightfall eliminates the three critical failures plaguing legacy DLP: detection blind spots, operational overload, and deployment friction. While legacy solutions rely on basic pattern matching with 5-25% accuracy and require months of tuning, Nightfall's AI-based detectors, LLM based file classifiers and Computer Vision models deliver 95% accuracy out-of-the-box. Our AI-based data lineage traces data from source to destination, determining risk regardless of content transformation - catching sophisticated exfiltration risks that bypass traditional regex rules. You can deploy Nightfall in hours via API integrations across SaaS apps like Microsoft 365, Google Workspace, Atlassian, Salesforce, Slack, Zendesk, Notion, endpoint agents on macOS and Windows, browser plugins, and any AI app, with zero productivity impact and no single points of failure.
How does Nightfall stop data leakage?
Nightfall combines AI-powered content classification with intelligent data lineage to stop data loss before it happens. Our platform continuously monitors data movement across SaaS apps, endpoints, email, browsers, and Shadow AI apps, classifying sensitive content including secrets & credentials, PHI, PCI, and PII with 95% precision. Additionally, Nightfall also supports LLM powered file classifiers - pre-trained models that identify sensitive document types based on structure, layout, and semantic meaning, not just keywords or entity matches. These file classifiers classify data across categories such as Financial Statements & Revenue Reports, Internal Source Code & Engineering Artifacts, HR Records & Personnel Files, Contracts, NDAs, and Legal Agreements, Product Roadmaps & R&D Specifications, Tax Filings, Audit Docs, and Compliance Records. When risky behavior is detected, Nightfall automatically enforces context-aware policies: blocking high-risk exfiltration to unauthorized destinations, redacting sensitive information in SaaS apps, revoking inappropriate access permissions, blocking, deleting, quarantining or encrypting risky data - all while maintaining visibility and allowing legitimate business workflows to proceed unimpeded.
How can I secure AI tool usage?
Nightfall provides comprehensive Shadow AI security across any generative AI app including ChatGPT, Copilot, Gemini, Deepseek, Claude, Perplexity and more. Our browser plugins and endpoint agents monitor AI interactions in real-time, intercepting sensitive data before it reaches AI platforms. Nightfall automatically blocks secrets, credentials, PHI, PCI, or other confidential information via file uploads or clipboard copy/paste actions. Unlike solutions that discover Shadow AI usage after the fact, Nightfall prevents data leaks at the moment of interaction, enabling your teams to innovate safely with AI while maintaining complete control over intellectual property and regulated data.
What types of insider risks can Nightfall detect?
Nightfall detects malicious insiders deliberately stealing data, opportunistic insiders collecting sensitive information over time for later misuse, and negligent insiders accidentally exposing data through policy violations. Our AI-powered platform identifies unusual download patterns, unauthorized data movement to personal devices or domains, suspicious file exfiltration over days or weeks, and sophisticated exfiltration attempts across multiple channels simultaneously. Data lineage tracking provides complete visibility into the origin, journey, and destination of sensitive information, enabling accurate detection of threats that unfold gradually. LLM-powered risk scoring distinguishes between routine business activity and true threats, dramatically reducing false positives while ensuring real insider risks don't slip through.
Can Nightfall prevent data leaks to AI tools like ChatGPT?
Yes. Nightfall is purpose-built to prevent data leaks to any AI app including ChatGPT, Copilot, Gemini, Deepseek, Perplexity, Claude, and Grok. Our browser plugins and endpoint agents monitor AI interactions in real-time, analyzing prompts and file uploads before they reach AI platforms. When sensitive content is detected - including secrets, credentials, PHI, PCI, PII, or confidential documents - Nightfall automatically blocks information from prompts, blocks unauthorized file uploads and clipboard copy/paste. Data lineage tracking maintains visibility even when information is copied, pasted, or transformed, ensuring no sensitive data slips through. Unlike legacy DLP blind to browser-based AI usage, Nightfall provides comprehensive Shadow AI security without blocking innovation.
Is deployment disruptive to existing workflows or users?
Nightfall deployment is designed for zero disruption. API-based SaaS integrations deploy in minutes through simple OAuth connections - no network architecture changes, no productivity impact. Our lightweight macOS and Windows endpoint agents install via MDM with minimal system footprint. Policies work out-of-the-box with 95% accuracy, eliminating the months of tuning legacy solutions demand. When sensitive data is detected, we provide real-time user education through Slack, Teams, or email notifications, coaching employees rather than blocking them. Our Human Firewall approach enables self-remediation, transforming security from a barrier into an enabler while maintaining comprehensive protection across your entire organization.
What integrations are available with existing security tooling?
Nightfall integrates seamlessly with your existing security ecosystem through flexible alerting and SIEM/SOAR connectivity. Send customized violation alerts directly to Slack, Microsoft Teams, Jira, or email with complete context including user details, content snippets, violated policies, and recommended remediation actions. Connect with identity providers including Okta, Entra ID, and Google Directory for synchronized user-based policies targeting high-risk users, user groups. Our platform works alongside your MDM solutions for streamlined endpoint agent deployment. For organizations requiring centralized security operations, Nightfall provides comprehensive audit logs and violation data that integrate with your SIEM platform, ensuring threat intelligence flows into your existing security workflows without requiring teams to learn new systems.
How quickly can we see value with Nightfall after implementation?
Value begins immediately. SaaS integrations complete in under one hour via API connections. Your first data scan can reveal hundreds or thousands of previously unknown violations - exposing blind spots in legacy tools within 24 hours. Endpoint deployment via MDM reaches full coverage across macOS and Windows devices within a week. Policies work out-of-the-box with 95% accuracy, eliminating weeks of tuning time. Most customers achieve comprehensive protection across their entire SaaS environment, endpoints, and AI tools in under one month. Typical POC timelines run two weeks from kickoff to wrap-up, providing complete assessment of detection accuracy, coverage breadth, and operational fit. Organizations generally see 6x ROI within the first 90 days.
Can Nightfall replace my existing DLP and insider risk tools?
Yes. Nightfall consolidates legacy point solutions into a unified AI-powered platform. Unlike traditional DLP operating in silos with gaps between SaaS, endpoint, email, and browser coverage, Nightfall provides complete visibility across your entire data environment in one solution. We combine real-time data detection and response, exfiltration prevention, and data discovery and classification with AI-powered insider risk detection - eliminating the operational complexity of maintaining separate tools. Customers consolidate 3-5 security solutions, reducing vendor sprawl and total cost of ownership while actually improving protection. With 95% out-of-the-box accuracy, unified policy management, and investigations up to 5× faster, Nightfall delivers superior security outcomes with dramatically lower operational overhead than stitching together multiple legacy tools.
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Stop the Leak. Not the Work.
See exactly where your sensitive data is moving—across AI, agents, SaaS, and endpoints—before it leaves your control.
Tell us a little about yourself and we'll connect you with a Nightfall expert who can share more about the product and answer any questions you have.
- Deploy in under 1 hour
- No professional services required
- SOC 2 Type II certified
- No agents to install






