This document provides a summary of how PayPal adapted its Secure Product Lifecycle (SPLC) process to work within an Agile development model at scale. It describes how PayPal transitioned to having over 400 Scrum teams globally in a "big bang" transformation. It also details how PayPal implemented "Security Stories" to make security requirements equal citizens alongside user stories. This allows automated security controls and tools to handle most projects, with human involvement only for higher risk projects. Metrics like adoption rates and completed security stories are used to measure success.