If a web server has directory listing enabled, navigating to an open folder (like ://example.com ) allows anyone to see and download the files listed inside. Predictable Naming Conventions
associated with a major 2013 data leak involving approximately 20 million hotel guest records shifenzheng.bak
Unlike in many Western countries where ID verification is handled by remote APIs (e.g., Auth0, Stripe Identity), some Chinese local software still uses offline USB readers that dump data to the filesystem by design. If a web server has directory listing enabled,
Not by themselves, but they represent a significant security risk. A .bak file is a copy of an original file. If that original contains sensitive information (like passwords, API keys, or personal data), the backup is just as sensitive. Their danger lies in how they are handled and stored. If a computer is discarded, sold, or compromised
If a computer is discarded, sold, or compromised by malware, shifenzheng.bak files are prime targets for identity thieves.