If you suspect your information may be in such a list, take these steps immediately:
: Use Have I Been Pwned to see if your email address has appeared in any known data breaches.
Text File Format - What Is A .TXT And How to Open It - Adobe
: The .txt format is used because it is lightweight, easy to share on underground forums, and can be read by simple scripts without special formatting.
: Typically, each line follows a username:password format. Recommended Security Actions
: Add an extra layer of security to your account so that even if a hacker has your password, they cannot gain access.