What happened to my SECURE wireless network?

I had a SECURE wireless internet connection set up at home thru my Linksys router. Now as of today, the connection has changed to "linksys" and is unsecure. Do I have to set up the secure connection again? If so...how do I do that? thanks

Hello,

I'm not much of a Network expert maybe this article might help http://www.ehow.com/how_5051859_set-wireless-network-linksys-router.html