This video demonstrates how to implement multi-factor authentication (MFA) in a Next.js application using AWS Amplify and Amplify Studio. The presenter walks through the process of creating an account, setting up MFA with an authenticator app, and logging in with the additional security layer. The tutorial showcases the simplicity of adding robust authentication to web applications using AWS services, highlighting the seamless integration of Amplify with React-based projects. By leveraging AWS Cognito as the backend, developers can quickly enhance their app's security with just a few clicks in the AWS Management Console and minimal code changes.