Using someones internet connection?

[john]

If you are on an unsecured internet connection, and if you don't have anti-virus software, anti-spyware software, anti-malware software on your pc, then it IS POSSIBLE for someone to hack/track/spy on you.

Generally speaking, just using someones wifi connection doesn't direclty give them any kind of view into your pc; however anybody with access to the same network can sniff any unsecured (unencrypted) traffic to see what data is being transferred. And if you get a virus or malware on your pc from unsafe surfing, then potentially a hacker could get sufficient access to your pc to be able to activate your webcam and see what it sees.

So ... yes, you are being paranoid, but that doesn't mean they aren't spying on you. :-D