Duo_Security DuoUniversal by: Duo_Security .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.7.1 This package targets .NET Framework 4.7.1. The package is compatible with this framework or higher. 359,154 total downloads last updated 4/17/2025 Latest version: 1.3.0 duo 2fa mfa authentication Duo Universal Prompt client for 2FA