Madison Square Garden Co. said late Tuesday that hackers may have stolen payment card data over the course of a year from patrons that used them at its venues. The company said magnetic data on cards used at merchandise, food and beverage vendors at Madison Square Garden, The Theater at Madison Square Garden, Radio City Music Hall, Beacon Theatre and The Chicago Theatre from Nov. 9, 2015 to Oct. 24, 2016 may be affected. The breach did not affect sales at its websites, its box office sales, or sales through Ticketmaster, the company said. Madison Square Garden shares were up 0.3% at $173.50 after hours.
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