Symantec File Integrity Monitoring !!better!! May 2026

What Is Symantec File Integrity Monitoring? Symantec File Integrity Monitoring (FIM) is a security technology (part of the Symantec Critical System Protection and Symantec Data Center Security product lines) that continuously monitors and validates the integrity of files, system configurations, registry keys, and directories on critical servers, endpoints, and network devices. It detects unauthorized changes—whether from malware, insider threats, or configuration drift—in real time.