** Shares of South Korean e-commerce giant Coupang CPNG.N fall 8.6% to $25.75 premarket
** Co says personal information from 33.7 mln customer accounts was breached via unauthorized data access, marking the country's worst data breach in over a decade
** The breach has exposed customers' names, emails, phone nos, shipping addresses and certain order histories but not payment details or login credentials, CPNG says
** South Korean police says they are probing the incident
** 13 of 15 brokerages rate the stock "buy" or higher, two "hold"; their median PT is $38- data compiled by LSEG
** Up to last close, stock up 28% YTD
(Reporting by Avinash P in Bengaluru)
((Avinash.P@thomsonreuters.com;))