https://www.bleepingcomputer.com/news/security/ticketfly-temporarily-shuts-down-to-investigate-hack/

Eventbrite-owned ticket distribution service Ticketfly has taken its website offline today after a hacker defaced its frontpage and stole a part of its customer database.

The hack has taken place late yesterday night (US timezones), on May 30. At that time, users trying to purchase tickets reported that the Ticketfly website was showing a defacement message with the now infamous "V for Vendetta" character, the symbol of the Anonymous hacker collective.