In recent years, we're seeing the emergence of a new form of technology scale. Today's emerging technologies - which rapidly grow to millions of users, do not sell a product or service. Instead, they build a platform on which others can create value. Yet, new platforms often fail because the design and growth strategies involved in building them are complex, resource intensive and expensive to scale. Yet, in the IAM/CIAM space, many companies are still building their own internal IDaaS platform internally, facing this massive challenge, and oftentimes failing to achieve their goals. This talk discusses the complexities, resources, and scalability challenges Auth0 has faced in creating an IDaaS platform that securely manages more than 2.5 billion logins per month. He will take a deep dive into specific scenarios including: scaling password hashing, user search and designing across multiple cloud regions among others.