From playlists to bank accounts, the rise of resource sharing and access delegation is fundamentally reshaping expectations for Customer Identity and Access Management (CIAM). Driven by rapid growth in B2B and hybrid B2C–B2B use cases, today's enterprises must evolve beyond simple, frictionless user journeys to manage complex, auditable sharing experiences at scale. In this session, PlainID and Thales will explore real-world scenarios illustrating this shift, breaking down the critical distinctions between authentication, authorization, and delegation. Attendees will discover how modern, advanced authorization approaches enable "portable trust" and cross-org collaboration, ultimately transforming CIAM from a standard identity layer into a powerful business enabler.