UGN Security Forums UGN Security: Underground News Technology [Reuters] As giant U.S. IPO nears, Alibaba's China e-commerce crown slips

SHANGHAI (Reuters) - Alibaba's dominance of online retail in China faces its biggest-ever challenge as the firm founded by Jack Ma in a one-room apartment 15 years ago lines up a U.S. initial public offering that could value the firm at around $140 billion.