White small moving disc with vertical glow around it

I was in my car driving on my way to my house   . I got a block away and my security system triggered an alert!
It triggered the alert as if a person was detected at my front door. I slowly drove closer to my house looking on my phone to check the front door camera.
When i didn't see anyone, I pulled in front of my house and stopped. I rechecked the camera again.
I saw this quick moving dot that i had seen before and chalked it up to a firefly.
After i got into my house, My daughter called me and said i got an alert at my house.
We tried to figure what it was. We chalked it up as a lazer. I said maybe it was a clear laser.
I never told her it could have been a firefly because it was like invisible when I came into my house.