The invention is a method of issuing or altering lottery tickets to make them less vulnerable to fraud. The method involves marking the ticket, either manually or mechanically, as void before it may be canceled by the machine. Ticket reprints would be eliminated, and the terminal would have to read a portion of the barcode and the void mark to cancel a ticket. A complete serial number could be typed in if the barcode is not able to be read by the terminal. The requirement that the actual ticket being canceled be read by the scanner in the terminal would eliminate the fraud associated with the cancellation of lottery tickets.