Which software is designed to prevent malicious software from accessing your computer?

Answer me pls is an algorithm that has been coded into something that can be run by a machine.

"it security policy enforcement and monitoring" respond to the following: describe how monitoring worker activities can increase the security within organizations. describe the rationale that managers should use to determine the degree of monitoring that the organization should conduct. explain the extent to which you believe an organization has the right to monitor user actions and traffic. determine the actions organizations can take to mitigate the potential issues associated with monitoring user actions and traffic.

What is a point-in-time measurement of system performance?