How do you find out if your computer is spied or monitored?
use spy sweeper program
If it is running slower than usual, usually says if your are being monitored or not. If you think it is spyware, run a full computer scan with something like norton. If you think you are being monitored over a network, check how much data your computer is transferring by using task manager (CTRL+SHIFT+ESC) and clicking on the network tab. If you are not downloading any files or using the internet and the graph shows…
As the name implies, this is software that "spies" on your computer. Nobody likes to be spied on, and your computer doesn't like it either. Spyware can capture information like Web browsing habits, e-mail messages, usernames and passwords, and credit card information. If left unchecked, the software can transmit this data to another person's computer over the Internet.
Does your employer have a responsibility to inform its employees that their email and Internet activity are being monitored?
No your employer does not need to inform you that your internet activity or email is being monitored in regards to use of such things on the company computer. You are not entitled to nor should you expect privacy in this case. This has been brought up several times in the past. You should always use the computer as if "big brother" is watching you, this way no adverse actions can be taken against you.