This document discusses strategies for scaling the ForgeRock identity platform to support 1 billion users. It describes how ForgeRock Directory Services provides a specialized, centralized, secure, highly available, and high-throughput identity store. It has been benchmarked to support 500 million users and tested to support 3 billion users over 1 week. The document also discusses how ForgeRock products are evolving to support cloud-native architectures with horizontal scalability, simplified replication, and data sharding to further increase capabilities.