EDISON - Some researchers say they were able to use a phone application to get on the PATH system without paying. The Port Authority says its new state of the art control center for PATH will usher in more frequent trains, more riders and greater safety. Researchers discovered that riders can use the new center for free if they have an android phone and Smartlink MetroCard, the kind you scan instead of slide. A tech firm called the Intrepidus Group posted video of a researcher running off all the rides on a card at a PATH station. The researcher then used a phone application called Ultrareset to scan the card and fill it back up. A PATH spokesperson told News 12 New Jersey that the rail system has not experienced such fraudulent activity on its Smartlink cards to date, but it is discussing the issue with its card vendor. The spokesperson also said that the application actually takes advantage of a flaw in the Smartlink cards. The Intrepidus Group says it pointed out the flaw so that it can be fixed.