On May 22, 2015 (April 5, 2015), Baidu helped the police crack the world's first criminal case against Internet traffic hijacking. On May 22, 2015, China News Service recently reported that Baidu and Chongqing police cracked a large DNS Internet traffic hijacking case. The two alleged offenders were both regular employees of Chongqing Telecom. They took advantage of their positions to illegally hijack traffic through technical means and harm the interests of users for their own personal gain. In less than half a year, the amount involved was as high as 1.5 million yuan, which caused extremely bad impact on society. It is reported that the suspects have been approved for arrest, and the case has also passed the review of the procuratorate. They will be transferred to the court for formal prosecution in a few days. If the court reaches a guilty verdict, it will mean that for the first time in the world, the judicial level confirms that "Internet traffic hijacking" is a criminal act that violates the criminal law and should be investigated for criminal responsibility. It is understood that the alleged offenders Tang and Shi are both employees of Chongqing Telecom, and Shi is specifically responsible for the management, operation and maintenance of Chongqing Telecom's DNS domain name resolution system. In May last year, Tang met Zhao, who is responsible for promoting the websites of Internet companies. The two parties agreed that Tang would help Zhao increase the traffic of website users and pay them according to the amount of traffic. Afterwards, Tang invited Shi to hijack the normal access request of Chongqing Telecom users to the designated server Internet Protocol Address through DNS hijacking, and by attaching a promotion code to the normal access request of the user, many Internet cooperation companies mistakenly believed that the user's visit was guided by the promoter, so as to pay the corresponding promoter for promotion. So far, when the two were arrested and brought to justice, Shi and Tang made a total profit of more than 1.5 million yuan. DNS hijacking is also known as domain name hijacking. Criminals use special technical means to intercept the user's original access needs and return specific webpages to the user, or destroy the original normal service to achieve the purpose of profit. In our country, DNS hijacking is most common in the form of forced pop-up advertisements, and the people involved in this case took advantage of the bottom of the telecommunications room to directly sign traffic transaction agreements with other internet companies for improper benefits, which caused bad effects in society and industry. In recent years, with the prosperity of the Internet industry, Internet traffic hijacking cases of major websites have occurred frequently, and the current situation of anti-Internet traffic hijacking is not optimistic. Some internal personnel frequently take advantage of loopholes to damage the interests of users and companies for their own personal gain, and even violate the law. As a representative of domestic Internet companies, Baidu has always taken a firm attitude on the issue of anti-Internet traffic hijacking, and has adopted legal, technical and other multi-dimensional means to carry out such illegal and criminal acts, and strives to protect the healthy and orderly development of Internet ecological security. During the investigation of this case, Baidu fully assisted the Chongqing police, including dispatching operation and technical related personnel to provide the police with detailed traffic transactions and answers to technical questions, and assist the police in determining the direction of investigation and fixed evidence. At present, the two telecom employees involved in the case have been approved for arrest, and the case will soon be prosecuted by the procuratorate to the court. The reporter understands that if the claim that "Internet traffic hijacking constitutes a crime" in this case is finally recognized by the court, the Chongqing Internet traffic hijacking case may become the world's first successful case of combating Internet traffic hijacking through criminal means. This breakthrough in negative evaluation of Internet traffic hijacking from the criminal and legal level will play a positive role in greatly deterring illegal acts and reducing or even eliminating Internet traffic hijacking. In addition to cooperating with relevant departments in judicial investigations, Baidu also strives to protect the legitimate rights and interests of users and network ecological security through technical means. In December last year, Baidu launched a free public DNS resolution server. Users can effectively reduce the risk of being hijacked by setting their DNS to Baidu DNS, and get a smoother network access experience. In addition, Baidu also took the lead in implementing HTTPS secure encryption on the whole site in March this year. By adding an SSL secure socket layer to the traditional HTTP channel, all Baidu search requests will be encrypted, so as to solve the sniffing and hijacking of user privacy by "middlemen" and provide users with a more secure and reliable network environment. Experts pointed out that the rise and rapid development of the Internet economy has not only generated huge commercial value, but also posed new challenges for the maintenance of network ecological security. Reinforcing the construction of network ecological security through technical means is one of the effective methods, but if you want to completely end the chaos of Internet traffic hijacking, it is urgent to promote the research of new types of network crimes and improve the current situation of China's network ecological security. As a representative of Internet companies, Baidu has assisted the judicial authorities to promote the world's first "Internet traffic hijacking" conviction and strive to reshape the network ecological order, which will be of great significance to standardize and promote the healthy development of the entire Internet ecological security industry.