Spyware safety: read the fine print
While a lot of spyware programs are blocked by totally free spyware removal tools and up to date browser and operating systems, there are still a lot that can get in your system because you unknowingly gave them permission to do so. This is because these spywares usually piggyback on top of other unrelated software such as download managers, file searching tools or even trivial software such as games, screensavers and browser toolbars. Technically speaking, it is not entirely the fault of these software developers that your pc has been compromised. The user shares the blame for being careless.
Fortunately, majority of these programs that come bundled with spyware or programs that function similar to spyware, have Terms of Service Agreements or EULAs that specifically state the inclusion.