Shifenzheng.bak ((link)) | Essential

The presence of a file named shifenzheng.bak on a public-facing server is a major red flag for several reasons: 1. Massive Data Exposure

This file became famous in late 2013 after a major data breach involving a third-party Wi-Fi service provider for hotels. It typically includes the following detailed data fields: Personal Identification: shifenzheng.bak

format, users typically required a SQL Server instance to "restore" the database and query the information. Some developers later converted it into easier-to-read formats like CSV for wider (and illegal) circulation. The presence of a file named shifenzheng

shifenzheng.bak refers to a notorious SQL database backup file that contains leaked personal information of approximately 20 million hotel guests from several Chinese hotel chains (most notably Jinjiang Inn). shifenzheng.bak