Which Salesforce security feature is recommended to protect users' usernames and passwords from being compromised?

Two-factor authentication (2FA) is recommended as a security feature to protect users' usernames and passwords from being compromised. It adds an essential layer of security beyond just requiring a username and password. With 2FA, users must provide a second piece of information — typically a temporary code sent to their mobile device or generated by an authentication app — in addition to their standard login credentials. This means that even if a username and password are compromised, unauthorized access is still prevented since the attacker would also need this second factor to complete the log-in process.

Implementing 2FA significantly decreases the likelihood of unauthorized access to accounts. It is particularly effective against phishing attacks and other methods of credential theft, making it a cornerstone of a comprehensive security strategy for protecting sensitive information within Salesforce. By ensuring that a second form of verification is required, organizations can effectively safeguard not only individual user accounts but also the integrity of the entire Salesforce environment.

The other options, although they contribute to overall security, do not provide the same level of direct protection against username and password compromise as two-factor authentication does. While IP ranges and trusted IPs help control access points and enhance security boundaries, they do not prevent the actual theft of credentials, which is the primary concern addressed by