Sophos Certified Engineer Practice Exam 2025 - Free Sophos Engineer Practice Questions and Study Guide

The function of tamper protection is best defined as the prevention of unauthorized changes to security settings. This feature is crucial for maintaining the integrity of a security solution, as it ensures that only authorized personnel can modify settings that affect the protection of the system. By locking down these critical settings, tamper protection helps to defend against potential threats that could exploit vulnerabilities created by unapproved alterations. This is essential in ensuring that the security measures in place remain effective and uninterrupted.

The other choices, while they describe important security functions, do not accurately represent the primary objective of tamper protection. For instance, securing user passwords pertains to authentication and access control, restricting user access to files relates to data governance, and disabling the firewall, even temporarily, does not align with tamper protection's mission to safeguard configurations and settings from tampering.