(NEW YORK) -- Live Nation, the parent company of Ticketmaster, revealed Friday evening that it was the victim of a cyber attack that compromised user data.The company said in a filing with the U.S. Securities and Exchange Commission that it discovered an "unauthorized activity within a third-party cloud database," on May 20 and promptly launched

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Klaus Vedfelt Getty , Exchange Commission , Ticketmaster , Justice Department , Infrastructure Security Agency , Live Nation ,