Which security measure is highlighted in FortiSASE to protect remote users?

Multi-Factor Authentication (MFA) is emphasized in FortiSASE as a critical security measure for protecting remote users. MFA enhances security by requiring users to present two or more verification factors to gain access to an application, network, or online account. This is particularly important for remote work environments where users may be accessing sensitive data over potentially insecure connections. By implementing MFA, organizations significantly reduce the risk of unauthorized access, as an attacker would need to compromise multiple factors, which is much more difficult than relying on a single method of authentication.

The other options do not provide the same level of security. Firewalls, while essential, primarily serve to control incoming and outgoing traffic based on predetermined security rules and do not specifically address user authentication. Data encryption at rest is vital for protecting stored data but does not prevent unauthorized access. Traditional password-only systems lack the added security layers provided by MFA, making them less secure in today's threat landscape where data breaches are increasingly prevalent.