PureAUTH by PureID is a resilient Single Sign-On (SSO) platform designed to provide passwordless authentication and zero trust access for enterprises. It acts as an Identity and Access Management (IAM) firewall, offering secure authentication without relying on passwords or phishable Multi-Factor Authentication (MFA). PureAUTH authenticates users, profiles their devices, and assesses associated risks to regulate access based on identity and device risk at the time of authentication. It is engineered to withstand advanced attacks, fraud, and outages, while providing granular trust management with user key management and verification for Continuous Integration/Continuous Deployment (CICD) processes.