A computer-readable recording medium recording a security management program which enables nodes for executing jobs to omit virus check while maintaining the security of a system. When a job execution request including a program is input, a sender decision unit compares the identification of the job sender with reliable device information, to determine whether or not the program has been transmitted from a reliable device. Subsequently, a job manager outputs a start request specifying the program. If the program is judged to have been transmitted from a device other than the reliable devices, a safety decision unit outputs a virus check request, whereupon a virus checker executes code check on the program.