Hackers Claim To Have #Breached #Ticketmaster, Stealing Personal #Data of 560 Million Users https://yro.slashdot.org/story/24/05/29/226202/hackers-claim-to-have-breached-ticketmaster-stealing-personal-data-of-560-million-users
Discussion
Use email aliases like SimpleLogin (can self-host)
Use password managers like Bitwarden (can self host)
Use various prepaid cards for payment
...even then though, event safety demands some level of identity mapping at some point. That's what the hackers were after, and that's what they got. You're safe if you never go to big name events.