Do you think is would also be okay for them to monitor employees who are watching porn while in HP buildings with HP equipment?
I know of employers who fired some of their women employees for just that. They were hired to work and be good representatives of the company, not to look up porn while at work.
Bottom line is there is home time and work time. Consider work time to not be private and to be a time to do what you are paid for, not to do any private thing beyond taking emergency private calls when needed IMO.
If it's a COMPANY computer, on COMPANY time, in a COMPANY building.....they can monitor all they want.....this is OLD news......when I was in HR at Sequent Computers in 1989 we were dealing with this.....sheesh.