It could be difficult to manage a group of people who have PCs at their desks. You look at your people. It may look like a very busy room. And at the same time they may be simply chatting online or reading news. Will you get your hands on that dirty spyware? Or possibly there may be more options around that deal with employee monitoring?
Sure, a couple of years ago there was little supervisors could do. Only spyware was available for computer monitoring . Spyware is the name for computer applications that make screenshots, copy text entered from the keyboard, watch over traffic. With spyware you have more control than you would want. You might make the employees very unhappy. You can lose respect of your people, because you are effectively violating their privacy.