If you are concerned about your own account security, here are the best steps to take: immediately to something unique [4].
It looks like you’re referring to a (a text file containing leaked usernames and passwords, often used for unauthorized account access) [1]. 18K LOL USERPASS.txt
to see if your email address has been involved in any known data breaches [6]. If you are concerned about your own account
via the Riot Games website to add an extra layer of protection [5]. 18K LOL USERPASS.txt