In the evolving digital landscape, the need for robust security and seamless user experiences has led to the development of various authentication methods. These methods, which serve as the initial line of defense against unauthorized access, range from traditional password-based authentication to more advanced systems like passwordless methods, multi-factor authentication (MFA), federated authentication, biometric authentication, and token-based authentication. Each method has its unique benefits and is suited for different scenarios, balancing security with user experience. Password-based methods are the simplest but less secure, while passwordless options, such as magic links and one-time passwords, provide better security and user engagement by reducing cognitive load and management overhead. MFA enhances security by requiring multiple identity verification factors, and federated authentication simplifies user access by utilizing Identity Providers. Biometric and token-based methods offer high security and convenience, leveraging unique physical traits or possession-based tokens. When selecting an authentication method, factors like security, user experience, scalability, compatibility, user preferences, compliance, and cost must be considered. Descope, a no-code Customer Identity and Access Management (CIAM) platform, facilitates the integration of these authentication methods into applications, allowing developers to easily adapt and update their authentication processes.