Ticketfly has been grounded . After a `` series of recent issues , '' the online ticketing service took down all its websites Thursday , saying it was `` the target of a cyber incident . '' `` Out of an abundance of caution , we have taken all Ticketfly systems temporarily offline as we continue to look into the issue , '' the company said across its many properties . Ticketfly did n't comment on whether any user information , such as credit card data , had been stolen Attack.Databreach in the cyberattack Attack.Databreach . `` We realize the gravity of this decision , but the security of client and customer data is our top priority , '' a Ticketfly spokeswoman said in an email . The company 's pages have been down since 6 a.m . ET . A hacker who goes by `` IShAkDz '' has taken credit for the attack . Before Ticketfly took down its websites , the hacker left a taunting message across the service 's website : `` Your security down , I 'm not sorry . Next time I will publish Attack.Databreach database . '' The hacker , who also left an e-mail address , appeared to have a database with more than 4,000 spreadsheets holding people 's information , including email addresses , phone numbers , names and addresses . In an email , the attacker told CNET that he or she contacted TicketFly about the potential exploit multiple times , but did n't hear back . The attacker demanded Attack.Ransom TicketFly pay Attack.Ransom 1 bitcoin to fix the cyberattack Attack.Ransom , which is currently worth $ 7,544 . The Ticketfly spokeswoman did n't comment on the alleged hacker . Eventbrite , which owns Ticketfly , does n't have any issues on its website .