Qihoo 360 Technology Co. Ltd., or Qihoo 360, (Chinese: 奇虎; pinyin: Qíhǔ, pronounced CHEE-hoo in English) is a Chinese internet security company known for its antivirus software (360 Safeguard, 360 Mobile Safe), Web Browser (360 Browsers), and Mobile Application Store (360 Mobile Assistant). It was founded by Zhou Hongyi and Qi Xiangdong in June 2005. Qihoo 360 had 496 million users for its Internet Security products and 641 million users for its Mobile Antivirus products as of June 2014.