These text files are known as "combo lists." They are essentially massive spreadsheets of stolen credentials—emails and passwords—harvested from various data breaches over the years. Refers to the number of accounts in the list.
Don't let a simple .txt file be the reason you lose access to your online identity.
Why Your Email Might Be on a "100k abv.bg.txt" List—and What to Do About It
Never reuse passwords. Use a Password Manager (like Bitwarden or 1Password) to generate and store complex, unique passwords for every site.
A simple text format that automated hacking tools can easily read. How Hackers Use Them
Refers to the popular Bulgarian email provider.
