Nightfall

Freemium

Data loss prevention for security teams governing data across AI, endpoints, SaaS, and email.

什么是 Nightfall？

Nightfall is a data security and data loss prevention platform for controlling sensitive information across employee activity and AI-driven workflows. It combines discovery and classification, real-time prevention, and investigation context across SaaS applications, email, endpoints, browsers, AI applications, agents, and MCP servers. Security teams can use it to identify exposed data, enforce policies as data moves, and investigate incidents with information about the user, source, destination, and related activity. The platform also includes Nyx, an AI-powered DLP analyst embedded in the Nightfall Console for querying the environment and reviewing recommendations.

Nightfall 能做什么？

Sensitive data detection and classification

Pre-trained detectors identify PII, PHI, payment card data, secrets, and source code, with support for custom detectors. Nightfall applies classification across supported SaaS and AI workflows.

Real-time exfiltration prevention

Enforce data policies across monitored endpoints, browsers, SaaS, email, and AI activity, including at the point of action in supported agent sessions.

AI agent and MCP controls

Premier adds hooks for supported developer tools, MCP discovery and inventory, and policy enforcement for tool calls. Hooks can scan prompts, tool calls, responses, and shell commands; LLM model responses are monitor-only.

SaaS discovery and remediation

Data Discovery and Classification scans connected SaaS applications for exposed sensitive data and supports remediation, including addressing inappropriate sharing and access misconfigurations.

Contextual incident investigation

Alerts can include user, role, data origin, destination, and preceding activity. Nyx supports natural-language questions, incident summaries, pattern analysis, and recommended actions from within the Nightfall Console.

Deployment and response workflows

Connect a SaaS application or deploy the endpoint agent, then configure policies and response actions such as notifications and user self-remediation.

使用场景

“Govern employee use of generative AI”

Allow employees to use approved AI services while detecting or blocking attempts to submit sensitive customer or company information to AI apps, including unmanaged or personal tools.

“Secure agent and developer workflows”

Apply controls to AI harnesses and MCP activity so security teams can inspect prompts, tool calls, and tool responses, discover MCP servers, and enforce policy on supported workflows.

“Find and remediate exposed SaaS data”

Scan connected SaaS environments for sensitive information that is already exposed or shared too broadly, then investigate and remediate the identified risk.

“Investigate a suspected data transfer”

Review an alert with its associated user, data origin, destination, and surrounding activity; use Nyx to summarize an incident, examine patterns, or consider recommended response actions.

常见问题

What does Nightfall protect?

Nightfall covers data movement across SaaS, email, endpoints, browsers, and AI applications. Premier adds controls for AI agents and MCP workflows, including supported hooks and MCP discovery.

How does Nightfall pricing work?

Foundation and Premier are priced per user per year. Final pricing depends on user count and data volume, with a tailored sales quote. Data Discovery and Classification is available as an add-on.

How is the platform deployed?

Connect a supported SaaS application or deploy the endpoint agent, then configure the data policies and response workflows needed for your coverage.

What can the AI hooks inspect or block?

For supported Cursor, Claude Code, and VS Code hooks on macOS and Windows, Nightfall can scan and block prompts, MCP tool calls, tool responses, and shell commands. LLM model responses are monitor-only.

What does Nyx do?

Nyx is an AI-powered analyst built into the Nightfall Console. It answers natural-language questions, summarizes incidents, identifies patterns across activity, and recommends actions such as blocking an upload or revising a policy.

快速信息

Category: Data loss prevention and data security
Provider: Nightfall AI
Primary users: Security and SecOps teams
Coverage: SaaS, email, endpoints, browsers, AI applications, agents, and MCP workflows
Editions: Foundation and Premier; priced per user per year
Analyst: Nyx, an AI-powered analyst embedded in the Nightfall Console