What are the cases of network information security incidents?

Typical cases of network security at home and abroad 20 13

Case 1- 1 American cyber espionage was made public. On June 20 13, Snowden, who participated in the network monitoring project of the National Security Bureau of the United States, disclosed the "prism incident". The United States secretly uses super software to monitor networks, telephone calls or short messages, including nine companies, including Google, Yahoo, Microsoft, Apple, Facebook, AOL, PalTalk, Skype and YouTube, to help provide vulnerability parameters and open servers, so that it can easily monitor emails and instant calls of relevant state agencies or millions of netizens. It is said that Cisco has participated in the construction of almost all large-scale network projects in China, involving key departments such as government, military police, finance, customs, postal services, railways, civil aviation, medical care, and the network systems of telecom operators such as China Telecom and China Unicom.

Case 1-2 Recent situation of domestic cyber attacks. According to the sampling monitoring results of CNCERT, the National Internet Emergency Center, and the data released by CNVD, the national information security vulnerability sharing platform, during the week from August 20 19 to August 25, 20 13, the number of tampered websites was 5,470. The number of websites with back doors implanted in China is 3203; The number of counterfeit pages on domestic websites is 754. The number of tampered government websites is 384; The number of government websites with backdoor implantation in China is 98; There are 754 counterfeit pages on domestic websites. The number of hosts infected with network viruses is about 694,000, including about 230,000 hosts controlled by Trojans or bots in China, and about 464,000 hosts infected with phreak worms. Information security vulnerabilities 150 were added, including 50 high-risk vulnerabilities. Update information:

Case 1-3 According to the data of the National Internet Emergency Center (CNCERT), the situation of China being attacked by overseas network is becoming more and more severe. CNCERT sampling monitoring found that from 201310/0 to February 28th, 6747 Trojan horses or botnet control servers abroad controlled more than1900,000 hosts in China. Among them, 2 194 control servers in the United States control China 1.28 million hosts, and the number of control servers and hosts ranks first in China.

Case 1-4 The network security problem in China is very prominent. With the rapid development of Internet technology and application, the number of Internet users in Chinese mainland has increased dramatically. It is estimated that by 2020, the number of global Internet users will rise to 5 billion, and the number of mobile users will rise to 654.38+0 billion. In 20 13 years, the number of netizens in China will reach 648 million, and the number of mobile phone netizens will reach 46 10 billion. The number of netizens, broadband netizens and national top-level domain name registration still ranks first in the world, and the Internet penetration rate has steadily increased. However, vulnerabilities in various operating systems and applications are constantly emerging. Compared with western developed countries, China's network security technology and netizens' ability and awareness of security prevention are relatively weak, and it is easy to become the main target of hackers at home and abroad.