File Integrity Monitor FIM detects change by first establishing a highly detailed baseline version of each monitored file or configuration in a known and trusted state. Using real-time monitoring, it detects change to any aspect of the file or configuration and captures these in subsequent versions.
Versions provide critical before and-after views that show exactly who made the change, what changed, and more. True FIM also applies change intelligence to each change to determine if it impacts integrity (for example, rules that determine if the change takes a configuration out of policy or is one that is typically associated with an attack).