For a sample of system components, inspect processes that are running. Verify that only necessary and required processes are enabled and running. Implement security features for any required processes that are considered to be insecure. A process, in the simplest terms, is an executing program. One or more threads run in the context of the process. Running processes expose their corresponding application related information and also access to it. Therefore it is important to make sure that your systems are running with only necessary and secure processes.