Review all services linked to your Abv.bg email for suspicious activity.
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
Immediately update your Abv.bg credentials and use a unique, complex password. Review all services linked to your Abv