The AI security platform for agents and the data they move.
AI agents now move data at machine speed, through tool calls, prompts, and MCP servers that legacy tools never see. Nightfall controls that movement in real time. Human or agent, SaaS or endpoint, prompt or tool call: the same detection, the same policy, the same timeline, across endpoints, browsers, MCP servers, email, and SaaS.
Nightfall AI
AI Moves Your Data. Nightfall Controls It.
Legacy DLP was built on rules. Nightfall was built on AI.
For twenty years, data security meant regex, rules, and endless tuning that still missed what mattered. We started Nightfall to end that. Our detection models understand what data actually is, so they tell legitimate business activity apart from real exfiltration without slowing anyone down.
Now the actor has changed. An agent can pull from Salesforce, read a file, call a tool, and send the result somewhere else before anyone asks what happened. Incumbents are bolting AI onto old platforms. We’re AI-native, and have been since day one. Nightfall deploys in minutes, with no tuning cycle, and governs agents and people from the same engine.
Detection precision
To live in production
Average ROI
Of the Forbes AI 50 run Nightfall
Backed by world-class investors
Nightfall is backed by a cadre of CEOs, investors, professional athletes, and experts across infosec, AI, and enterprise software.

Enrique Salem

Maynard Webb

Kevin Mandia

Frederic Kerrest

Paul Rudd

Drew Brees

Kelvin Beachum

Ronnie Lott

Stuart McClure

Doug Merritt

Ryan Carlson

Larry Fitzgerald Jr.

Bobby Wagner

Josh Childress

Ramanathan V. Guha

Ryan Nece
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