Qihoo 360, officially known as Qihoo 360 Technology Co. Ltd. is an internet and computer security software provider. The company was founded in 2005 by Zhou Hongyi and Qi Xiangdong in Beijing, China and provides various security solutions for computer and mobile users around the world. The company’s product portfolio contains security software such as antivirus, web browsers, and mobile application store. The company provides these solutions based on a freemium business model. It also provides its antivirus products free of charge in the Chinese market. In 2013, the company expanded their distribution overseas and markets with Russian, English, Spanish, German, Korean, Japanese, and French release of their softwares.