In China's Internet circle, Baidu has always been a company with a "reputation". Baidu's image can be said to be deeply rooted in the hearts of the people and well-known by virtue of events such as Baidu Family Bucket, the sale of "Hemophilia Bar", the Wei Zexi incident, Li Mingyuan's resignation, and the former general manager of Baidu Alliance Development Department who was sentenced to five years for taking bribes. On February 28, 2017, the third-party security agency Huorong Security Lab released a report that Baidu's websites contained malicious code and hijacked user traffic.

On March 3, the official microblog of Hao123, a Baidu website, issued a statement, admitting that users can use Baidu's www.skycn.net/and soft Any software downloaded from these two sites will be implanted with malicious code, which is used for remote control, hijacking website traffic, etc. Hao123 said that the Hao123 software downloader was developed and produced by a third-party outsourcing team, in which malicious code was implanted to tamper with and disguise the website and hijack user traffic. At present, Hao123 has reported the case to the public security organ, and they said they would assist the relevant departments to follow up the follow-up events.