A "combolist" is a plain-text file containing credentials (often email:password format).

If you are concerned that your Yahoo account or password was leaked, do not look for the list. Instead, use secure, legitimate tools:

It is important to clarify that downloading or using "combolists"—which are massive collections of stolen usernames, emails, and passwords—is illegal and poses significant security risks. These lists are the product of data breaches and are used by cybercriminals for "credential stuffing" attacks to hijack accounts.

Use tools like Bitwarden, 1Password, or iCloud Keychain to generate unique, complex passwords for every site.

This refers to the number of individual credential lines in that specific sub-collection. ⚠️ Risks of Attempting to Download

Searching for and downloading these .zip files from forums or "leaks" sites is dangerous:

Possessing or distributing stolen PII (Personally Identifiable Information) can lead to criminal charges under computer misuse laws.