Ticketmaster fights ticket fraud with 'refreshing' barcodes
 

Ticketmaster is trying a new way to combat ticket fraud: make the ticket change on its own. It's introducing a SafeTix system that gives ticket buyers a unique, encrypted barcode that refreshes every few seconds. You can't copy the ticket by taking...

https://www.engadget.com/2019/05/15/...pted-barcodes/