Ethical hackers and security teams use these queries to find their own organization's exposed data and secure it before malicious actors do.
Hardcoding credentials in plaintext files and placing them in version control (like Git) is bad. Pushing that repository to a public web server without proper access controls is a disaster waiting to happen.
Running the search "username password -facebook.com filetype.txt" is —search engines are public. However, actually using any credentials found to access a system without authorization is a crime in most jurisdictions (CFAA in the US, Computer Misuse Act in the UK, etc.). username password -facebook.com filetype.txt
┌────────────────────────────────────────────────────────┐ │ DATA PROTECTION CHECKLIST │ ├────────────────────────────────────────────────────────┤ │ [ ] Use a dedicated password manager │ │ [ ] Enable Multi-Factor Authentication (MFA) │ │ [ ] Configure robots.txt to block search indexing │ │ [ ] Audit cloud storage permissions regularly │ └────────────────────────────────────────────────────────┘
If your credentials show up in a search like this, it means your data has been compromised. To stay safe: Ethical hackers and security teams use these queries
When executed, this specific Google Dork targets poorly secured web servers and misconfigured cloud storage buckets. The results often include:
username password -facebook.com filetype:txt │ │ │ │ │ │ │ └─ Only shows plain text files (.txt) │ │ └─ Excludes any results from facebook.com └────────┴─ Looks for these exact words anywhere in the file Use code with caution. Running the search "username password -facebook
While Google is the most common platform for this technique, the same syntax often works on other search engines like DuckDuckGo, Bing, and specialized OSINT repositories like Shodan or PublicWWW. Security Risks and Exposure Types
Common operators include site: to search within a particular domain, inurl: to find specific words in a URL, intitle: to look for terms in a page's title, and intext: to search within the body of a page. However, the most relevant operator for our discussion is filetype: .
If you need a checklist for ?
: These are standard keywords. Google searches for pages or documents where both words appear. In a leaked file, these words often act as headers for columns or labels next to stolen credentials.