Passwordless authentication is gaining traction as a more secure and user-friendly alternative to traditional password-based systems, addressing issues such as weak password use and the administrative burden of password management. It involves verifying user identity without relying on passwords, using methods like magic links, biometrics, and push notifications. Although it doesn't replace multi-factor authentication (MFA), it can be combined with it for enhanced security. Passwordless approaches are supported by major companies like Apple, Google, and Microsoft, and while they offer benefits such as stronger security and a smoother user experience, they also come with challenges, including deployment complexity and potential user resistance. Despite higher initial development costs, implementing passwordless authentication can reduce operational overheads and improve security by eliminating the need for a centralized password store, making it a promising approach for modern authentication needs.