Shanghai.gov.cn

A massive data breach involving the Shanghai government database occurred when an unsecured Elasticsearch dashboard was left exposed on the internet without password protection. The incident revealed approximately 23 terabytes of sensitive data belonging to billions of residents. The data was discovered by security researchers and later offered for sale on darknet forums. The leaked records originated from the Shanghai National Police database and included personal details of Chinese citizens and crime reports spanning several decades. This event is considered one of the largest data exposures in history due to the sheer volume of personal information involved.