Only if your neighbors are hackers. I know for a fact that Cuz's computer is set up to access the system of the convenience store he leases out, and his nephew's computer as well--the nephew is extremely computer-proficient and installed it all. My anti-spyware has found Netscape browser attachments on my laptop--and I don't use Netscape, but he does. Just in case you haven't seen this nasty piece of news, the top sources of malware on line no longer are porn and games. Now the most dangerous Web searches are for "free software", "work at home", and the ever-popular "free screensaver".
I keep a good-quality bought software on my machine, and have additional privacy add-ons. If you have serious concerns, install Tor--it's free, and it will hide and reroute your IP.