Fans attending the May 18th show who watched a display of Swift rehearsing were the unwitting targets of a facial-recognition camera that reportedly took their photos. The system, built into a kiosk showcasing rehearsal footage for Swift's Reputation tour, was meant to weed out people who threaten the pop star.
Confirming the details to Rolling Stone, Mike Downing, chief security officer at Oak View Group, the advisory board for concert venues, spilled on how it worked.
But it's understandable why Swift and her team have gone to such great lengths to keep her most problematic fans in check. What they didn't know is that their pictures were quietly being taken and then sent back to a command post in Nashville for analysis.
She argues that companies should tell people when facial recognition is being used and let them opt out if they want.
Swift went on to thank her fans and those who toured with her.
Just a few days before, another man was arrested outside her home in Beverly Hills wearing a mask and rubber gloves.
The Reputation Tour kicked off in May of 2018 and beat out the Rolling Stones for highest-selling USA tour ever with a revenue of $266.1 million, a number that beat Swift's previously highest-grossing domestic tour by a woman record for her The 1989 World Tour.
Either way, it has the potential to be pretty damaging if we're not careful with how we use it.
Ticketmaster also announced plans earlier this month to use technology called Blink Identity - said to be able to ID people walking at full speed in less than a second - to help move crowds into concert venues faster, according to Engadget. Facial recognition technology is popping up around the world in shopping centres, airports and stadiums including in Britain.