To enhance security protocols on an AWS account, what feature is recommended?

Using multi-factor authentication (MFA) significantly enhances the security protocols of an AWS account by adding an extra layer of protection beyond just a username and password. MFA requires users to provide two or more verification factors to gain access to their account. This typically involves something they know (like a password) and something they have (such as a physical device or a mobile app generating a time-based one-time password).

This multi-layered approach makes it much harder for unauthorized users to gain access, even if they manage to obtain the password. Implementing MFA is a best practice recommended by AWS for all accounts, especially those with access to sensitive data or critical infrastructure. By requiring multiple forms of authentication, the risk of compromised credentials leading to unauthorized access is significantly reduced, thereby enhancing the overall security of the AWS environment.