The city of Shanghai’s COVID health code mobile app is used by 48.5 million people, and a hacker has claimed to have gotten their personal information . This is the second time in less than a month that a data breach has been reported in the Chinese financial center. On Wednesday, the hacker posting under the alias “XJP” offered to sell the data for $4,000 on the hacker forum Breach Forums. A sample of the data, which included 47 people’s phone numbers, names, Chinese identity numbers, and health code status, was made available by the hacker. Of the 47 people...