A hacker claims to have obtained a wealth of personal information on one billion Chinese individuals from the Shanghai police, which, if accurate, would be one of the largest data breaches in history, according to cyber experts. Last week, an anonymous internet user identified as "ChinaDan" posted on the hacker forum Breach Forums offering to sell the more than 23 terabytes (TB) of data for 10 bitcoin, almost $200,000. "In 2022, the Shanghai National Police (SHGA) database was leaked. This database contains many TB of data and information on Billions of Chinese citizen," the post said. "Databases contain information on…