Implement Multi-factor Authentication In Go with Verify

A multi-factor authentication system, commonly referred to as MFA, is used to add extra security to applications and verify a user's identity. To implement an MFA system using the Go programming language and the Vonage Verify API, developers need to create a client using the vonage-go package, which requires an authentication set created by invoking the CreateAuthFromKeySecret function. The client is then used to start a verification request, which sends a code to the user's phone number. The user must input the code on a confirmation page, and the application will confirm if it is valid using another function called VerCheck. This process ensures that applications are secure and safe for users, protecting them from hackers who could expose their data.