What it is
Happy 2008! And thanks to my Mom for forwarding the article on this new hack.
While we've encouraged each of you to get a home router – we perhaps haven't placed enough emphasis on being sure that it is secure from such tampering. We highly recommend that you check your home router and be sure that the password is set to something other than the default. A password should preferably be at least 7 characters long and include varied case, at least one number, and at least one symbol.
What you should do
It's highly recommended that you discover how to change your router password and change it immediately to something other than the default. Be sure to change it to either a password you can remember, or if you feel you can't remember it – write it on a piece of tape and put that on the bottom of the router (if in a home setting). The same is true of your wireless WEP or WPA key – set it, and print it, but don't leave it at the default.
Original article from ZDNet: http://news.zdnet.com/2100-1009_22-6159938.html?tag=nl.e550
Router home pages for looking up instructions on how to reset your password:
Linksys home page: http://www.linksys.com
Netgear home page: http://www.netgear.com
dLink home page: http://www.dlink.com