People pose in front of a display showing the word 'cyber' in binary code, in this picture illustration taken in Zenica December 27, 2014.[Photo/Agencies]

China's Internet users incurred a total loss of about 80.5 billion yuan ($13 billion) over the past year due to personal information leaks, junk messages and web fraud, according to a research report released by the Internet Society of China on Wednesday.

The 2015 report on the protection of Chinese Internet users' rights was published by the society's 12321 report center for bad Internet information, a platform set up by the society and commissioned by the Ministry of Industry and Information Technology.

The number of people on the Internet reached 668 million in June in China, the China Internet Network Information Center said on Thursday. However, 78.2 percent of Web users had experienced personal identity information leaks, including their name, educational background, family address, identity card number and work place, according to the report.

The report also said 63.4 percent of Web users had encountered leaks of information about their online activities, including phone call records, online shopping records, Website browser history, IP addresses, software using habits and the users' locations. And online shopping has become the biggest source of information leakage.

Hao Zhichao, deputy director of the 12321 report center, said the center receives a large number of reports on personal information leakage every day. In addition to personal identity information mentioned above, personal information leaked also includes email accounts and passwords, car and house purchase information, as well as medical information.

Hao said, more than 80 percent of Internet users feel their lives were disrupted due to information leakage.

Over the past year, a total of around 80.5 billion yuan, or 124 yuan for every Internet user, was lost due to info leaks. About 45 million Internet users suffered a loss of more than 1,000 yuan.