Every delegation in this series so far has been bounded by time. This post covers the other kind: bounded by a dollar figure, or a dollar figure and a category together, checked fresh against every attempted spend rather than a stored running total.
Toby Allen
Solutions Engineer at Okta. I write about identity, access management, and security. This site archives my published articles, talks, and presentations.
Series - Indepth Explainers
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Verified directors and public registries: identity proofing meets FGA
A company registry needs three things a subscription service doesn't: a public entry anyone can search, a governance role distinct from day-to-day admin, and proof that whoever holds that role is who they say they are.
Building Embedded Passkey Login with Auth0
Auth0's Passkey APIs let you build passkey sign-in directly into your own UI instead of redirecting to Universal Login. Here's how that fits alongside Universal Login, what self-service passkey management looks like hand-rolled versus with Auth0's official pre-built components, and one Allowed Origins (CORS) setting worth checking before you go looking for a WebAuthn bug that isn't there.
One authorisation model, a dozen industries
It's easy to claim an authorisation model is generic. It's more convincing to run the exact same model, unmodified, across media, healthcare, financial services, telco, retail and legal case management, and show the tests passing every time.
Auth0 Anonymous Sessions: Cookies and Metadata Are Both Fixed at Creation
An anonymous session's cookie and its metadata are both set once, at the moment the session is created, and neither one changes again for the rest of that session's life. That single fact reshapes how you have to track state across the handoff into a known identity.
Separating people from accounts: why a login isn't a person
The delegated-access series treated the authenticated login as the whole security principal. It isn't quite. The same real person routinely holds more than one login, and an authorisation model that can't tell them apart ends up merging blast radii it shouldn't.