👉 An authentication fluid is a dynamic, context-aware security mechanism that continuously verifies the identity and trustworthiness of users or systems in real-time, rather than relying on static credentials like passwords. It combines multiple factors—such as biometrics, device behavior, location, and contextual data—to assess risk and grant or deny access based on the current situation. Unlike traditional authentication, which is a one-time check, the fluid adapts to evolving threats and user behavior, offering stronger protection against unauthorized access while enabling seamless, frictionless interactions in applications like secure APIs, cloud services, and IoT ecosystems.
