Typically, there are two main issues with monitoring a system manually: having to go out deliberately (and repeatedly) and check to see if something has happened; and the fact that you are most likely looking for the proverbial needle in a haystack of logged events.

In recent years, regulatory initiatives like Sarbanes-Oxley, HIPAA, PCI, and GLBA have placed increased emphasis on the need to monitor and secure sensitive information. For example, The Payment Card Industry (PCI) Data Security Standard dictates one of the most stringent requirements of all—logs must be reviewed daily, and a minimum of three months of logs must be available for analysis.