Userpwd.txt - Inurl
To prevent Google from indexing any text files in a specific directory (e.g., your /data directory), you would add the following to your robots.txt :
Detection and monitoring suggestions
These files typically contain one of two things: Inurl Userpwd.txt
The effectiveness of inurl:userpwd.txt stems from several factors that make it a reliable tool for attackers: To prevent Google from indexing any text files