Checkpoint
Mapping the actions behind Amazon’s website
2026-09-17
How we approached coverage, request classification, and parallel exploration while building a map of Amazon’s user actions.
How to Share an Account With Your Agent and Know What It Did
2026-09-15
Checkpoint gives your agent scoped access to any online account, enforced at the network layer inside a trusted execution environment, with a verifiable log of every action it took.
Keypo + Multifactor: A founder’s reflection on the acquisition
2026-06-15
Earlier this month we announced that Keypo has joined Multifactor. This is the story of the problem, the two halves we each solved, and what we're building now that we're one company.
What is Multifactor? From Multi-Factor Authentication (MFA) to Secure Account Management
2025-10-14
Explanation of Multifactor's approach to secure account management and sharing versus the contemporary Multi-Factor Authentication (MFA) approach.
Introducing Checkpoint: A Better Way to Share Online Accounts
2025-07-07
Checkpoint uses novel cryptographic techniques to enable easy revocable, non-repudiable, and fine-grained sharing of any online account resource.