It was in the first one, although the second article alludes to the fact that the hotel took the ATM offline, eventually. The first part also goes into some det

It was in the first one, although the second article alludes to the fact that the hotel took the ATM offline, eventually. The first part also goes into some detail regarding the hardware and the fact that he was approached by an ATM firm. They'd probably know if the BT beacon was a maintenance tool. Having an openly visible BT signal emanate from your illicit snooping device seems amateurish on the face of it, but it does make connecting to it easier for technically challenged criminals, who I assume don't have a bachelor in CS or EE. They'll be happy to escalate to a harder to detect wireless signal if it becomes necessary.