McAfee VirusScan On-Access Scanner All Processes settings must be configured to use only one scanning policy for all processes, unless the use of Low-Risk Processes/High-Risk Processes has been documented with, and approved by, the IAO/IAM.

Organizations should use centrally managed antivirus software that is controlled and monitored regularly by antivirus administrators, who are also typically responsible for acquiring, testing, approving, and delivering antivirus signatures and software updates through the organizations. (FISMA SP 800-83) Some processes are known to be higher risk, while others are low risk. By restricting policy configuration to the Default Processes policy, all processes will be interpreted equally when applying the policy settings and will provide the highest level of protection. Best practice dictates configuring Low Risk and/or High Risk policies only when it is necessary to improve system performance, and will focus the scanning where it is most likely to detect malware. There is risk associated with configuring the Low Risk and/or High Risk policies for the purpose of specifically excluding processes from scanning, and should only be done after evaluating other policy settings and determining risk.