In an apparatus for auditing security of a computer system, at least one secure application server is in communication with a global computer network. The secure application server is programmed to receive selectively security audit instruction data from a remote computer system via the global computer network. A plurality of scanning machines each are in communication with the global computer network and are programmed to execute selectively a security audit scan of the remote computer system via the global computer network. A central computer, having a memory, is configured as a database server and as a scheduler. The central computer is in communication with the secure application server and the scanning machine. The central computer is programmed to perform the following operations: evaluate a database to determine if a security audit scan is currently scheduled to be run for a user; determine which of the plurality of scanning machines is available to perform a security audit scan; copy scan-related information into a scanning machine determined to be available and instruct the scanning machine to begin scan; and record the results of the scan in the memory.