What is Nightfall AI?
Nightfall is an AI-native data loss prevention (DLP) platform for security teams that need to stop sensitive data leaks across SaaS apps, endpoints, AI agents, and browsers. It uses AI-based models to classify content with high accuracy and tracks data lineage from source to destination. Unlike legacy DLP, Nightfall covers modern vectors like generative AI tools (ChatGPT, Copilot, Gemini) and MCP servers. Ideal for organizations that want to enable AI adoption without exposing PII, PHI, credentials, or intellectual property. Deployable via API, browser plugins, and lightweight endpoint agents.
What are the features of Nightfall AI?
- Data Exfiltration Prevention: Tracks data lineage across SaaS and endpoints to block unauthorized movement, even when files are renamed or transformed.
- AI Agent & MCP Security: Intercepts AI agent tool calls, blocks prompt injections, and discovers unknown MCP servers to prevent exfiltration via AI workflows.
- Data Detection & Response (DDR): Real-time scanning of SaaS apps (Slack, Gmail, Google Drive) auto-quarantines or blocks sensitive content like API keys or PHI.
- Data Discovery & Classification: Scans years of stored data to find and eliminate exposure, using LLM-based file classifiers for financial, HR, legal, and code documents.
- Shadow AI Prevention: Browser plugins and endpoint agents block prompts, file uploads, or clipboard copy/paste to unauthorized AI apps like ChatGPT and DeepSeek.
- Nyx - Autonomous DLP Analyst: An AI agent that continuously sees, reasons, and acts on data risks without requiring human intervention for routine incidents.
What are the use cases of Nightfall AI?
- Security teams prevent mass exfiltration of corporate IP via email, personal cloud sync, or browser uploads.
- Compliance officers block PHI or PCI from being sent to external recipients or shared in public Slack channels.
- IT admins discover and govern unknown MCP servers running on employee endpoints to stop AI agent data leaks.
- Employees receive real-time coaching when they accidentally paste credentials into a public AI tool, enabling self-remediation.
- Organizations revoke inappropriate sharing permissions across Google Drive, Salesforce, and Notion after discovery.
How to use Nightfall AI?
- Deploy SaaS integrations: Connect Nightfall to Slack, Gmail, Google Drive, or Microsoft 365 via OAuth in under an hour.
- Install endpoint agents: Push lightweight macOS/Windows agents via MDM to monitor file and clipboard activity across all devices.
- Configure browser plugins: Activate the browser extension to block sensitive data from being uploaded or pasted into AI apps.
- Define detection policies: Use out-of-the-box AI classifiers for secrets, PII, PHI, and financial documents, or customize rules.
- Review alerts in SIEM: Forward violation logs to your existing SIEM/SOAR and investigate through Slack, Teams, or Jira.
