Security crew

There is no longer a “Security” category on Touchtown. Because it is contracted out?
I’m one of a few late night residents. I take my dog out at 10:30-11:00 at night and it’s happened twice that a security (I think) person walks by on the path bordering my back area. I see the light of his cell, but he stops in the shadows for a minute or so before stepping into the light & waving to me. Perhaps, he’s not wanting to startle me. But, my suggestion is that If security notices that a resident in his/her rounds, he immediately identifies himself to reassure the resident. Anyone can wave. I figured out that it was probably a Security person, but was a little unsettling to see only shadows of a person.