FIM control is a mechanism performed to validate the formal contract template of operating system and business specific files by regular monitoring the state of files against a valid known base line. A checksum is calculated of the important system file and the FIM process keeps on calculating the on-state checksum cntract the marked files with that of the baseline checksum. In an organization, file changes will naturally happen and formal contract template
will happen in a large amount. That is the reason organizations usually try to overlook the monitoring of system files, but to keep a check on the important data, compliances like PCI have made it e-books for business analyst
a requirement to regularly monitor the important files that if they were to undergo unexpected changes, it would result in critical data loss and serious damage.