Factory security alarm

Does anyone know of any reasons why the factory security alarm would randomly go off?? It happened twice to me in 5 minutes that it went off. I don't know if anyone was just messin with the car or what. The car is a 98 eclipse gst. Thanks in advance

I am going to guess that some fools were messin with it. If it happens again then I would think it is a problem with the alarm.

I have heard of some alarms going off because it was cold outside, so the control box got cold. (Don't know if this is really true)