Multifactor authentication enhances network security by requiring users to provide multiple forms of verification before gaining access to systems or accounts. This process typically involves something the user knows (like a password), something they have (like a security token or mobile phone), and sometimes something they are (like biometric information). By combining these factors, multifactor authentication significantly reduces the risk of unauthorized access, making it much harder for attackers to breach accounts using stolen credentials alone. This layered approach to security is increasingly essential in the digital landscape.