what is passwordless authentication

Passwordless authentication is an authentication method that allows a user to log in to a computer system without entering a password or any other knowledge-based secret. Instead, the user provides a secure proof of identity through a registered device or token, such as a smartphone, or by using biometric traits like fingerprint or face recognition. This method is considered more secure than traditional password-based authentication, as it reduces the risk of password-related attacks and improves the user experience by eliminating the need to remember passwords. Passwordless authentication is often used in conjunction with multi-factor authentication (MFA) and single sign-on (SSO) solutions to strengthen security and reduce IT operations expense and complexity