When I lived in Sunnyvale, CA, I got text that said "Renew your alarm license online at my-alarm-license-renew.info"

You do need a residential alarm license in Sunnyvale, but I was sure this was a scam. I called the city. It was the real address, and they were mystified as to why I'd call them. (I sent in a check to avoid the $1.50 processing fee, but that was before 50% of checks get stolen in the mail.)