File Integrity Monitoring (FIM) is the tracking of important files for unexpected or unauthorized changes. It matters because compromise often leaves traces in changed files, configurations, or binaries before a team notices other symptoms.
What is File Integrity Monitoring (FIM)?
FIM solutions monitor critical files, compare them against expected baselines, and alert when sensitive changes occur. This can help detect malware, persistence, configuration drift, unauthorized admin activity, and evidence tampering.
What File Integrity Monitoring (FIM) Commonly Supports
Common uses include server hardening, compliance monitoring, tamper detection, change auditing, and post-incident investigation support.
File Integrity Monitoring (FIM) vs. No Baseline Change Tracking
Without baseline tracking, unauthorized file changes may go unnoticed. FIM adds structured visibility into important integrity changes over time.
Frequently Asked Questions
Why is FIM useful?
Because unauthorized file changes are a common signal of persistence, tampering, or configuration abuse.
Is FIM the same as antivirus?
No. It focuses on integrity changes rather than broad signature or behavior-based malware detection.
