Why wasn't this immediately flagged when the same boarding pass was used for the second time?
Hereround an alarm is raised if a passenger uses a QR code, which was already used on the same flight.
Hereround an alarm is raised if a passenger uses a QR code, which was already used on the same flight.
"He made sure that he boarded before the the passenger who had the boarding pass information that he stole; when the other passenger tried to board, the system suggested that this passenger had already boarded, though the gate agent assumed it was a glitch, so allowed that person to board"