Multifactor recently launched!

Launch YC: Multifactor: A password manager built for secure sharing with humans & AI

"The future of secure online account sharing"

TL;DR: Multifactor is building the future of zero-trust authentication, authorization, and auditing for AI agents. They are excited to launch the best new way to securely share online accounts with humans and AI agents alike. Multifactor turns any online account into a “checkpoint link,” making secure and revocable account sharing as easy as sharing a Google doc.

https://www.youtube.com/watch?v=lug9O3BK7ok

Founded by Vivek Nair & Colin Roberts

FAQs

🧑‍💻 Who are they?
Vivek Nair, co-founder & CEO, is a Ph.D. computer scientist and former CIA officer. Colin Roberts, co-founder & CTO, is a Ph.D. mathematician and former NASA scientist. They are both passionate about usable security, with over a decade of cybersecurity experience.

🤔 What can I use it for?
One of their investors uses the app to share email and calendar access with a rotating team of personal assistants without worrying about unauthorized edits.
Their friend who is a financial advisor uses Multifactor to manage their clients’ brokerage accounts without needing their passwords.
Their colleague uses Multifactor to share Instacart and Netflix accounts with her roommates while being able to easily add and remove people.

⏳ Why now?
With increasing adoption of passkeys, biometrics, and MFA, accounts are getting more secure but harder than ever to share. Sharing conventional accounts with non-human actors (like AI agents) is also an emerging need that current solutions fail to address.

🔜 What’s next?
Multi, their AI assistant specializing in secure online account use, is right around the corner, with API access for developers coming shortly thereafter. The version you’re using today will always be free, but an enterprise plan with advanced features is coming soon.

Their world-class "account manager" that allows agents to securely use online accounts on your behalf is just the start—their patented AI security technology seamlessly integrates with existing agentic software to thwart attacks like prompt injection, so CISOs and end users alike can breathe a sigh of relief, without slowing the pace of AI adoption.

Get Started

Demo Videos

Sharing accounts just by sending a link, without ever actually sharing the passwords. Can your password manager do that? https://www.youtube.com/watch?v=Vr_Ub0pBi6M

Instantly revoke shared accounts, without having to change your passwords. Can your password manager do that? https://www.youtube.com/watch?v=TmDJX29SIU0

One-click logins to any site, on any device. Can your password manager do that? https://www.youtube.com/watch?v=r9NgEfFDy8A

Securely sharing any online account with AI agents. Can your password manager do that? https://www.youtube.com/watch?v=d3kRAlZei00

Product Images

Image Credits: Multifactor

Learn More

🌐 Visit multifactor.com to learn more.
⭐ Give Multifactor a star on Github.
👣 Follow Multifactor on LinkedIn & X.
Posted 
November 25, 2025
 in 
Launch
 category
← Back to all posts  

Join Our Newsletter and Get the Latest
Posts to Your Inbox

No spam ever. Read our Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.