Acquisition
Jun 2026Multifactor acquired Keypo, Inc. to accelerate zero-trust security for AI agents; Keypo founder Dave Blumenfeld joined Multifactor as Founding Engineer.
SourceZero-trust authentication, authorization, and auditing for AI agents
Company research
Public company, workplace, funding, and market signals
Overview
Multifactor is a San Francisco-based zero-trust security platform for secure online account sharing by humans and AI agents, centered on authentication, authorization, auditing, revocable access links, and post-quantum cryptography. Public sources conflict on founding year: YC/company pages present it as a 2025 YC startup, while LinkedIn also lists 2016.
Primary product
Secure online account sharing / zero-trust account management platform (Checkpoint, Multi, and related MFKDF-based security primitives)
Founded
2025
Headquarters
San Francisco, California, United States
Team size
1-10
Industry
Computer and Network Security
Sub-industry
Identity security / AI agent security / zero-trust account management
Offices
San Francisco, California, United States
Business model
Freemium consumer software
B2B enterprise software
Security platform / SaaS
Funding
Stage
Seed
Total raised
$15.1M
Latest round
Seed · Dec 2025
Latest amount
$15M
People & investors
Work & culture
Research-heavy, mission-driven, transparent, and low-pressure; emphasizes open source, curiosity, hands-on ownership, and building for long-term sustainability.
Compensation
Public YC job listings show salary bands of $95K-$145K for a junior software engineer role, $145K-$195K for a 3+ year engineering role, and $195K-$245K for a 6+ year engineering role, plus equity.
Benefits
Competitive compensation
Significant equity ownership
Unlimited PTO
Health/wellbeing expense reimbursement
Professional development stipend
Commuter benefits
Employer-sponsored retirement accounts
Product & market
Pricing
Freemium for individuals and small groups; custom enterprise pricing for advanced features, support, compliance, and SLAs.
Differentiators
- —Fine-grained revocable sharing via checkpoint links
- —No raw credentials exposed to the AI or third parties
- —Detailed cryptographically signed audit trails
- —Built for humans and AI agents together
- —Post-quantum security posture
- —Works as a replacement for legacy password-manager-style sharing
- —Authentication, authorization, and auditing are unified in one platform
Technology
OAuth
Python
JavaScript
TypeScript
Rust
Post-quantum cryptography
Trusted execution environments
Enclave attestation
MFKDF2
Checkpoint
Switchboard
Smart contracts
Lit Protocol
Filecoin
Customers
Individuals and small groups
Enterprise teams using AI agents
Healthcare and health-tech organizations
Finance / fintech teams
Manufacturing supply-chain teams using AI agents
Competitors
Traditional password managers
Privileged access management (PAM) tools
Identity security platforms
Scale & contact
Estimated revenue
≈$250k/year (third-party estimate)
Signals & risks
Latest news
Multifactor Blog · Jun 2026
A follow-up reflection on why Keypo and Multifactor joined forces and how the combined teams and technologies fit together.
Multifactor Blog · Jun 2026
Official announcement that Multifactor acquired Keypo, Inc.; Keypo founder Dave Blumenfeld joined as Founding Engineer and the product roadmap shifted toward Checkpoint and zero-trust primitives.
Multifactor Blog · Mar 2026
Hiring announcement describing the engineering-heavy, hands-on nature of the team and the types of roles being recruited.
Multifactor Blog · Dec 2025
Official fundraise announcement: $15M seed led by Nexus Venture Partners with participation from Y Combinator and other funds/operators.
PRNewswire · Dec 2025
Wire coverage of the seed round, including the lead investor, participants, and the account-sharing product positioning.
Jobs and careers at Multifactor
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