It says that "Liveness detection will commence using a series of colorful flashing lights" - presumably that's designed to catch folks holding up photos.

"There are FOUR lights!"

I always liked it’s lunch time somewhere from Babylon 5, same vibe as that TNG episode.

[1] https://babylon5.fandom.com/wiki/Intersections_in_Real_Time

[2] https://en.m.wikipedia.org/wiki/Chain_of_Command_(Star_Trek:...