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Multifactor

Zero-trust authentication, authorization, and auditing for AI agents

Y CombinatorFall 2025ActiveB2BSecurity

What they do

Problem

Enterprises deploying AI agents lack verifiable, fine-grained security controls to prevent unauthorized access and provide accountability across multi-agent systems.

Solution

Multifactor provides zero-trust authentication, authorization, and auditing that lets users securely share and revoke account access for AI agents with granular permissions and detailed event logs.

Who it's for

Enterprise organizations (especially CISOs and security teams) building or operating agentic software systems.

Founders

Vivek Nair
Founder & CEO

Former CIA agent and Technical Lead for elite cyber units of the CIA & DOD. Youngest ever Ph.D. in Computer Science from UC Berkeley. NSF, NPSC, and Hertz fellow. Winner of the CIA's Exceptional Performance Award for extraordinary contributions to US national security.

Open roles 3

Founding Engineer
San Francisco, CA, US · Full-time · $145K - $195K · 0.50% - 2.00%
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Founding Scientist
San Francisco, CA, US · Full-time · $195K - $245K · 1.00% - 2.00%
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Junior Software Engineer
San Francisco, CA, US · Full-time · $95K - $145K · 0.25% - 0.50%
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