and:When installed in Stealth mode, Spector does not show up as an icon, does not appear in the "About This Computer" window, Application Menu, and it cannot be uninstalled without the Spector password which YOU specify, and Spector does not slow down the operation of the computer it is recording.
If this is your own computer, and you have only one account, then the only way someone might install it, is if you provide your admin password. It will record your internet activity, so if you open your activity monitor, you should see a service that becomes more active while you are browsing. It would probably have the name spector in the service name.The SpectorSoft software license agreement requires that you inform anyone you may monitor with SpectorSoft products.