NYC subway's contactless payments system, the OMNY, has a privacy issue that lets one view a rider's 7-day trip history using just the rider's credit card info (Joseph Cox/404 Media)

Joseph Cox / 404 Media:

NYC subway’s contactless payments system, the OMNY, has a privacy issue that lets one view a rider’s 7-day trip history using just the rider’s credit card info  —  In the mid-afternoon one Saturday earlier this month, the target got on the New York subway.  I knew what station they entered the subway at and at what specific time.