Sequoia backs Cymphony with $30M to manage AI agent security

In short: Sequoia Capital and other investors helped Cymphony raise $30 million to help companies control what AI agents can access at work.

What happened

Cymphony, a startup based in New York and Tel Aviv, announced $30 million in funding. The round includes a $25 million Series A, co-led by Sequoia Capital and SMBC Fin Atlas Beyond Fund. TechCrunch reported the deal values Cymphony at more than $100 million.

Cymphony focuses on security problems created by “AI agents,” which are software tools that can take actions on their own, like a fast digital employee. As companies give these agents access to files and business systems, it can become harder to track who or what has permission to see sensitive information.

Cymphony says its product gives security teams one place to see access for humans and non-humans, including AI agents. It also uses automation to investigate security issues and fix some problems, such as changing access permissions.

TechCrunch shared a few examples from Cymphony’s work. At one US public company, Cymphony said it found about 85,000 files that had become accessible to AI tools and agents, and it helped close that exposure. In another case, Cymphony’s CEO said an outside collaborator installed an unsanctioned version of Anthropic’s Claude and used existing access to scan thousands of sensitive files.

Why it matters

More companies are adding AI tools to everyday work, and these tools can move quickly and touch many systems, like a helper with a master key. That can create new ways for private company data to leak or be misused, even by accident. Startups like Cymphony are trying to become the “access control center” that helps businesses keep track of what their AI tools can do.

Source: TechCrunch AI