The leakage of personal information including identities, contacts, addresses and online behavior has become irksome in China. During a campaign to combat illegal disclosure of private information by public security organs in 2017, 831 people from various departments and companies were involved in selling personal information, and 389 hackers were arrested for illegally accessing and selling private information. According to Ten cent, a leading chinese internet company, among the 13 categories of personal information, the price for a single piece ranges from one yuan to 3,000 yuan (US$436). Details of the highly-educated are priced between 20 yuan (US$3) and 60 yuan (US$9) each. A survey by the China Youth Daily showed that 92 percent of 2,024 respondents worry about the security of their personal information. Online user information is illegally bought and used mainly for targeted advertisements. Experts cautioned that a detailed interpretation of relevant parts of the Internet Security Law was urgently needed, as was a new law on personal information protection.