External Identity

  BT, a renowned telecommunications giant serving 25 million customers with its four key brands and an extensive array of services including broadband, mobile, streaming, and infrastructure, embarked on a significant transformation journey. The goal was to replace its aging authentication platform, not just for one brand, but to create a unified authentication platform for all of BT's customer authentication needs. This ambitious project led to the birth of the Single Authentication Framework (SAF), a decision that marked a turning point in BT's approach to customer authentication. The Mission: Building the Single Authentication Framework The SAF project had clear, ambitious goals: Universal Application: Replace all customer authentication journeys across all four of BT’s brands. Modern Principles: Bring modern authentication principles and “security first” thinking to the forefront. Best Practices: Enforce best practices for developers, testers, and adopting services. Cutting-