What Is FIM (File Integrity Monitoring)?

 

 

 

According to PCI DSS, file-integrity monitoring or change-detection systems check for changes to critical files, and notify when such changes are noted. For file integrity monitoring purposes, an entity usually monitors files that don’t regularly change, but when changed indicate a possible compromise. 

File integrity monitoring involves examining files to see if and when they change, how they change, who changed them, and what can be done to restore those files if those modifications are unauthorized.

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