Explore the future of authentication in this conference talk from AppSec EU 2017. Delve into the world of voice biometrics as a potential replacement for traditional two-factor authentication methods. Learn how to pentest voice biometric systems, automate calls to IVR channels, and understand the importance of microphone quality. Discover techniques for fuzzing voice inputs to identify key biometric characteristics and thresholds that can bypass algorithms. Compare voice biometric solutions to standard password metrics and gain insights from real-world pentesting experiences. Examine the implementation of voice biometrics in mobile apps and define essential security requirements for these solutions. Gain valuable knowledge about the evolving landscape of authentication and the potential vulnerabilities in voice biometric systems.