Pluto Security Raises $42M to Help Enterprises Monitor and Control AI Tool Usage

Pluto Security, a startup focused on AI security for enterprises, emerged from stealth in October 2026 with $42 million in funding to address growing concerns about how employees are using AI tools inside companies — often in ways that create undetected security risks.

The funding comprises an $8.5 million seed round led by TLV Partners — with Armis co-founders also participating — and a $34 million Series A led by Jump Capital, with Skinos, Ansa Capital, and other angel investors joining. The company has 40 employees across the U.S. and Israel and plans to use the capital to develop its product, expand security research, and grow its U.S. presence.

CEO and co-founder Shahar Bahat told TechCrunch that newly released AI tools can appear inside company environments within two hours of launch. She added that roughly 60% of the risks Pluto detects originate from AI tools built by non-developers — with finance departments generating the most risk, followed by marketing and legal teams. Developers rank fourth. In one case, Pluto’s software found a finance employee at a Fortune 500 company had built a vibe-coded app to manage customer information that was left exposed to the internet.

Pluto’s software monitors the AI tools employees use, the extensions, skills, and MCP servers those tools rely on, and the apps and agents employees create. It can intervene in real time — for example, stopping an agent that attempts to gain permissions beyond what a user intended, or injecting instructions into an active session to prompt the agent to request confirmation. “We can inject context back to the session, and this way I can change how the agent is working,” Bahat said.

Bahat said the company began selling in April 2026 and has already surpassed $2 million in annual recurring revenue with more than 30 enterprise customers, including Oscar Health, Workato, Sixt, and AlphaSense. She noted that in every proof-of-concept engagement, Pluto found malicious activity — including cases where active attacks were underway during the evaluation.

To help build its customer pipeline, Pluto launched a free platform called Plutonium that lets security professionals check risks in publicly available AI skills, connectors, and add-ons. Bahat said thousands of security professionals use the tool and that 70% of Pluto’s sales pipeline now comes from inbound interest.