SHANGHAI (Reuters) - A hacker has claimed to have obtained a collection of personal information from Shanghai police on 1 billion Chinese people, in what tech experts say would, if true, be one of the biggest data breaches in history. The anonymous hacker, identified as “ChinaDan”, posted on hacking forum Breach Forums last week an offer of more than 23 terabytes of data for 10 bitcoins, the equivalent of about $200,000. “In 2022, the Shanghai National Police (SHGA) database was leaked. This database contains many terabytes of data and information about billions of Chinese citizens.” “The databases contain information about...