For almost a year, a company called Titan has operated a network of advertising beacons, devices that are capable of identifying nearby smartphones and which are often used to push advertisements and information to them, installed within pay phone booths throughout New York City without the knowled
PALO ALTO, Calif. — In late 2013, an A.T.M. in Kiev started dispensing cash at seemingly random times of day. No one had put in a card or touched a button. Cameras showed that the piles of money had been swept up by customers who appeared lucky to be there at the right moment.
