Taylor Swift reputation tour movie coming exclusively to Netflix

Taylor Swift reputation tour movie coming exclusively to Netflix

That's because the kiosk had a camera in it that immediately recorded an image of each person and then sent these images thousands of miles away to Swift's Nashville, Tennessee "command post", where facial recognition tech was used to identify if any of the concertgoers were one of the hundreds of Swift's known stalkers, reports Rolling Stone.

Fans were lured into a kiosk where clips of Swift rehearsing played on a screen.

Mike Downing, chief security officer of Oak View Group, an advisory board for venues including Madison Square Garden and LA's Forum, told Rolling Stone: "Everybody who went by would stop and stare at it, and the software would start working". There is no detail of which company makes the kiosks, where the images are stored or how long they are kept for.

Swift has been the target of a disturbing number of stalkers. As The Verge points out, the legality of such surveillance is on the artist's side in the U.S., as a show is technically a private event.

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Just a few days before, another man was arrested outside her home in Beverly Hills wearing a mask and rubber gloves.

For Swift fans concerned about their privacy, the singer is providing a way to watch her Reputation show from home. In September, she got a restraining order against Eric Swarbrick, who had been harassing her with letters threatening rape and murder since September 2016.

Roger Alvarado, 22, pleaded guilty to attempted burglary and criminal contempt earlier this month. He was wearing a mask and had a knife in his auto, and told police that he had driven from Colorado to visit the singer. Which, according to Quartz, means that owners can subject attendees to "any kind of surveillance they want"-including facial recognition".