# Co-chair, OpenID Shared Signals working group

Source: https://startwithidentity.com/experts/annabelle-backman/
Last updated: 2026-09-20
License: content by Start with Identity. Cite the source URL.

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## Bio

Annabelle Backman is a principal security engineer on AWS Identity and co-chairs the OpenID Shared Signals and Events working group. She edited RFC 8935 and RFC 8936, the push and poll delivery mechanisms for Security Event Tokens, and co-authored the RISC profile and event-type specifications built on them.

Profile built from public IETF and OpenID Foundation records.

## Where their work shows up

CAEP and RISC describe what one identity system should tell another when something changes. The delivery RFCs are the unglamorous layer that makes that actually work across organizations: how a transmitter and receiver establish a stream, how events are acknowledged, and what happens when a receiver is offline. Without agreed delivery, cross-domain signals stay a vendor feature. See [refresh token abuse](https://startwithidentity.com/techniques/refresh-token-abuse/), [session cookie theft](https://startwithidentity.com/techniques/session-cookie-theft/), and the [ITDR guide](https://startwithidentity.com/guides/security/identity-threat-detection-response-guide/).