The name is derived from the Chinese word for "Identity Card" ( shenfenzheng
shifenzheng.bak refers to a prominent 2013 data leak involving the personal information of approximately 20 million Chinese hotel guests. The filename literally translates to "ID card backup" (身份证 - shēnfènzhèng shifenzheng.bak
Configure your web server to block access to backup extensions. The name is derived from the Chinese word
The filename refers to a notorious 2013 data breach in China involving the leak of personal information for approximately 20 million hotel guests. The name is a pinyin romanization of shēnfènzhèng (身份证), meaning "Identity Card," with the .bak extension indicating a database backup file. The Story of "shifenzheng.bak" The name is a pinyin romanization of shēnfènzhèng
Certain Chinese-developed CRM or onboarding platforms for property rentals, ride-hailing services, or small loan companies have modules for ID verification. When a user is verified, the raw data—including name, ID number, birth date, and sometimes a photo or fingerprint hash—is written to a local backup as shifenzheng.bak .