It was recently discovered by netizens that US-based Yahoo Search designated many domestic portal sites including Tencent, Sina, and Sohu as malicious websites, and labeled them in red above the search results. Apart from the aforementioned websites, Yahoo Search also listed more than a dozen domestic famous websites including Xinhua Net, IT World, Kingsoft Xiaoyao, Zhongguancun Online, Sky Download, Beijing Youth Net, Qihu, and PCPOP as malicious websites.