shareyourknowledge@hotmail.com <shareyourknowledge@hotmail.com> wrote:

> I found out my wife gave our tenant the wireless encrypted password
> and ssid so he can use his laptop via our wireless Linksys router. I
> was pissed, but it's already been done. What steps can i take, if any
> to prevent any hacking?

Routers are cheap. So you could use two - or three - routers to isolate
a private part of the LAN.

Two examples

http://www.smallnetbuilder.com/content/view/24431/53/

http://www.smallnetbuilder.com/conte.../24428/53/1/1/

See the Related articles at the bottom of the page too.