What Is File Integrity Monitoring (FIM)?
File integrity monitoring (FIM) is the practice of recording what every file in a folder looks like, then checking it again later so you can prove nothing changed. A FIM tool takes a baseline snapshot of file paths and hashes, then re-checks on a schedule and reports any added, modified, or deleted file. Compliance frameworks such as SOC 2, PCI-DSS, and HIPAA require it for systems handling sensitive data because it catches both attackers and accidental edits. Traditional FIM like Tripwire runs on servers, but a file integrity monitoring tool like FolderManifest does the same job on Windows and Linux workstations, with a CLI that exits non-zero on drift so the alert plugs straight into a scheduler or CI pipeline.
Verify Folder Integrity With Checksums
Generate a SHA-256 baseline once, then re-verify on a schedule so the moment a file drifts you get an alert. Read the full guide.
Read the FIM GuideRead the full folder integrity verification guide or see how FolderManifest compares to Tripwire.