The ad-hoc stations are also found at today's plenary. I attached the station information its announce SSID which is seen from the center of the plenary room at 20:50JST. I guess it is not harmful, since the ad-hoc station is not used "IETF" as its SSID.
However, I recommend that the terminal should stop it. IETF-test 02:02:2D:27:43:A0 10 34 Ad-hoc
