Verosint Adaptive Authentication is an identity security solution that dynamically challenges users at login based on risk and fraud signals. The platform enables organizations to implement conditional authentication flows that step up security requirements only when risk is detected, rather than applying uniform authentication policies to all login attempts. The solution provides a custom rules engine that allows security teams to design specific responses to risky situations, including stepping up to MFA, presenting CAPTCHA challenges, or denying access attempts. Organizations can create custom rules using Verosint's fraud and risk signals or select from pre-built rule templates. The platform integrates with identity providers to enable adaptive authentication workflows. It supports multiple authentication flows including immediate login for low-risk scenarios, email one-time passwords, MFA step-up challenges, and biometric authentication step-ups. Verosint delivers real-time fraud insights and risk assessments during authentication events. The solution is designed to balance security requirements with user convenience by reducing unnecessary authentication challenges for legitimate users while maintaining protection against account attacks and fraud attempts. The platform was acquired by Imprivata and provides capabilities for both workforce identity threat protection and customer fraud prevention use cases.