They even see opportunities in markets who don’t trust countries like the US but welcome Qihoo as a third-party security service provider. Qihoo is the leading Internet security service provider and now one of the largest Internet companies in China. It claims it has more than 90% a security market share and covers roughly 70% of the smartphone security market here. 7 years ago, he introduced, not every user in China could afford any paid Internet security service. Zhou Hongyi, CEO of Qihoo, once said he wanted Qihoo to become the biggest Internet security company worldwide.