Multifactor (YC F25): Share Online Accounts with Humans & AI Agents
2025-10-14
It's 2025 and password managers aren't cutting it. Passwords, passkeys, 2FA, etc. make accounts more secure, but harder than ever to share. What if you could share any online account just by sharing a link, as easily as sharing a Google doc?
Perspectives on Security for AI Agents at Black Hat USA 2025
2025-08-07
Multifactor is at Black Hat USA 2025 and DEFCON 33! Are you wrestling with the security implications of Agentic AI? Come chat with us!
Introducing Switchboard: Provably Secure, Flexible, and Efficient Authorization
2025-07-28
Colin Roberts, CTO & Co-Founder of Multifactor, demonstrates Switchboard, a secure, flexible, and efficient data authorization management solution that advances the current state of the art by cryptographically enforcing complex authorization policies.
First Look: Next-Generation Multi-Factor Key Derivation Function (MFKDF2)
2025-07-22
Colin Roberts, CTO & Co-Founder of Multifactor, provides a first look at the next-generation Multi-Factor Key Derivation Function (MFKDF2), via a live interactive demo.
Colin Roberts: Why I’m Excited About the Future of Multifactor
2025-07-14
Colin Roberts, Co-Founder and CTO, shares his journey from pure mathematics to crypto-focused startups and now Multifactor, explaining why he's excited about the future of the company.
Finding Optimal Parameters for KDFs like Argon2, Bcrypt, Scrypt, PBKDF2, Balloon Hashing, & More
2025-07-11
Colin Roberts, CTO & Co-Founder of Multifactor, demonstrates an interactive tool and free API for selecting optimal parameters for hard KDFs like Argon2, Bcrypt, Scrypt, PBKDF2, and Balloon Hashing.
Introducing Checkpoint: A Better Way to Share Online Accounts
2025-06-25
Checkpoint uses novel cryptographic techniques to enable easy revocable, non-repudiable, and fine-grained sharing of any online account resource.
MFKDF Presentation at ACM CHI '24
2024-05-08
This video is a recording of the MFKDF talk presented at ACM CHI 2024. It details a user study demonstrating the strong usability benefits of MFKDF over other key management approaches.
MFKDF Presentation at USENIX Security '23
2023-11-30
This video is a recording of the MFKDF talk presented at USENIX Security 2023. It includes a quick overview of MFKDF, the features that it provides, and a high-level technical description.
MFKDF Presentation at DEF CON 30
2022-08-15
This video is a recording of the MFKDF talk presented at the Password Village at DEF CON 30. It includes a full overview of MFKDF, the features that it provides, and a high-level technical description of how it works.