Question regarding Wireless Internet Access in the home?

I just bought a laptop and hooked up a router. I was playing around with the information, I noticed that various other networks come up. I have seen several different names. Some show as Security-enabled, some unsecure, some as private. Since I am in an apartment complex, it doesn't surprise me that I may be... show more I just bought a laptop and hooked up a router. I was playing around with the information, I noticed that various other networks come up. I have seen several different names. Some show as Security-enabled, some unsecure, some as private. Since I am in an apartment complex, it doesn't surprise me that I may be picking up other people's wireless signal. But, I don't understand - first, is it possible for people to use my internet? Am I secure? Can they gain access to my computers? Since I can see them, it goes without saying they can see me - which is why all of these questions are coming up.

I guess I am just wondering, since this is new to me.

Thanks!

Shelly
10 answers 10