Ransomware is loud on disk: it rewrites and renames files at scale. That behaviour is exactly what File Integrity Monitoring is built to notice.
The early minutes
Between initial execution and full encryption there is a window. A flood of unexpected modifications to protected directories is a strong early indicator — one FIM can surface before the damage is complete.
Beyond signatures
Signature-based tools miss novel variants. FIM watches behaviour on the file system, so it flags the change regardless of which strain caused it.
Response-ready evidence
Verifim records what changed, when and by which process, giving responders a precise timeline. Paired with Verikor DLP, you both detect the tampering and control the data that malware tries to exfiltrate.