The FB.txt file contains a list of URLs that are associated with Facebook. When a developer or security researcher wants to verify that a URL is owned by Facebook, they can check the FB.txt file to see if the URL is listed. This can help prevent phishing attacks by ensuring that only legitimate Facebook URLs are used.
Facebook created FB.txt to help prevent phishing attacks and improve security. By making this file publicly available, Facebook is giving developers and security researchers a way to verify that a URL is actually owned by Facebook. This can help prevent scammers from creating fake Facebook URLs that can be used to trick users into divulging sensitive information. FB.txt
The FB.txt Revolution: How Facebookâs New File is Changing the Game** The FB