Ignition problem i think

Hey out of no where my inside lights, locks, and trunk stopped working and everytime I started my car it just cut off on me. Im stuck on this becuase ,my car has been sitting in the grage for over a month. Would a bad ignition switch cause this, is there anyway to test the ignition switch. It seems lght my security light is on solid, it doesnt blink at all. What do do, any advice other than the dealer will help. Thanks.

I'd start with posting the year. The ign sw. would not affect the int lites locks and trunk, check all the fuses, also if the security lite is on that is your first area of interest in fixing the no run issue.

sorry its a 99 alero 3.4