If you suspect your information may be in such a list, take these steps immediately:
: Change your password for your Hotmail/Outlook account and any other site where you use the same credentials. 1M HOTMAIL.txt
: Use Have I Been Pwned to see if your email address has appeared in any known data breaches. If you suspect your information may be in
: 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. easy to share on underground forums