Recently, Alibaba and Didi have experienced system crashes one after another. On November 12th, multiple Alibaba series apps encountered inaccessible or abnormal service situations. On November 27th, users in Shanghai, Beijing, Guangzhou and other places reported that the Didi Chuxing app could not be used and the map could not be loaded. The two network accidents have indeed caused a lot of trouble to the vast number of users. Especially in the evening of the same day, the Didi Chuxing app crashed, and many users were unable to contact ride hailing drivers, seriously affecting normal travel. Cycling users encountered an embarrassing situation of being unable to lock their cars in the cold wind, causing great inconvenience to commuters. In the rapidly developing digital economy, everyone's food, clothing, housing, and transportation are deeply linked to their mobile phones. The digital public products and platforms provided by leading internet companies have to some extent possessed the attributes of public infrastructure. Their safe and stable operation is not only the most basic responsibility to customers, but also relates to the normal operation of the economy and society. The consecutive network accidents have not only raised doubts among the public that even big companies cannot rely on technology, but have also sparked a series of concerns about network security, data security, and more. The landscape of the internet industry is constantly changing, and new competitors are emerging. Leading companies have a market advantage, but if they cannot provide a comfortable experience or even bring unnecessary trouble, the platform's stickiness will be greatly reduced, and consumers will seek better solutions. Therefore, relevant enterprises urgently need to pay attention to the security management of their data centers and cloud platforms. On the one hand, we need to strengthen the protection of critical information infrastructure, focus on researching and developing technologies such as data security and network security, and achieve technological control; On the other hand, it is necessary to strengthen talent reserves, improve emergency response mechanisms and fault plan drills, and implement them in every link and step of the process. Once a situation occurs, it can also be properly resolved in the first time. In addition, relevant regulatory authorities and industry associations should also fulfill their regulatory responsibilities, guide industry operators to strictly implement their main responsibilities, improve security measures, strengthen accident emergency response capabilities, and ensure the high-quality development of the Internet industry with high-level network security. (Lai Xin She)