Activate two-factor authentication if supported by the provider.
These are the text files generated by malware (stealers) or brute-force tools that list usernames, passwords, and often secondary data like IP addresses or cookies. Connection to Russian APT Groups 13k Abv.bg Hits-Logs.txt
Use services like HEROIC's Darkhive to check if your specific email has been flagged in recent dumps. 13k Abv.bg Hits-Logs.txt