Checkpoint: A Secure, Programmable Proxy for Sharing Online Accounts
2026-06-15
A short demo of Checkpoint, a secure programmable proxy running inside a TEE. Checkpoint terminates the encrypted connection, rewrites the traffic based on rules set in advance, then re-encrypts it on its way to the destination. Here, a rule replaces every text instance of "Apple" with "Banana."
Multifactor acquires Keypo to accelerate zero-trust security for AI agents
2026-06-01
Multifactor has acquired Keypo, Inc., a programmable encryption company. Keypo's founder, Dave Blumenfeld, is staying on as Multifactor's Founding Engineer to integrate Keypo's technology and research into Multifactor's platform.
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.
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.