Ticketmaster was hit by a cyberattack in November that led to the problems with ticket sales for Taylor Swift’s upcoming U.S. tour.
A massive influx of traffic on the Ticketmaster website caused the slowdown in ticket sales as a part of that was due to a cyberattack.
Source: https://www.databreaches.net/ticketmaster-says-cyberattack-disrupted-taylor-swift-ticket-sales/
"id": "TIC212625123",
"linkid": "ticketmaster",
"type": "Cyber Attack",
"date": "11/2022",
"severity": "60",
"impact": "2",
"explanation": "Attack limited on finance or reputation"