A robots.txt file is an instruction for honest crawlers, not a security control. Attackers ignore it. Use proper authentication:
The same search query that could compromise a system can also secure it—. New- Inurl Auth User File Txt Full
The act of constructing a search query is not illegal. However, may violate computer fraud laws (such as the CFAA in the United States) and terms of service agreements. A robots
intext:"username password" filetype:txt : Searches for any text file containing credential-related keywords. 🛡️ Best Practices for Protection New- Inurl Auth User File Txt Full
Remember: even searching for certain dorks on Google can flag your IP address as suspicious. Law enforcement and corporate security teams monitor repeated hacking queries.