Multi-factor authentication in Go using Twilio Verify API

This article discusses the implementation of Multi-factor authentication (MFA) in Go applications using Twilio Verify API. MFA adds an extra layer of security beyond traditional password-based systems, significantly reducing the risk of unauthorized access even if a user's password is compromised. The architecture consists of several key components such as User Registration, Login, SMS Verification, and TOTP Setup. The benefits of MFA in Go applications include enhanced security through multiple authentication factors, improved user trust and confidence, compliance with industry standards, mitigation of common attack vectors, and scalability and performance. The use case with Twilio Verify API demonstrates how to build a fullstack application that implements a secure login process with steps like User registration, Login, SMS OTP verification, TOTP setup, and subsequent logins requiring SMS and TOTP code after password.