The phrase refers to a specific archive that typically circulates on "dark web" forums, underground Telegram channels, or criminal marketplaces.
: Many files advertised as "stolen databases" or "hacker tools" are actually trojans. When you unzip the file, it may install spyware on your own computer to steal your passwords. Download 121K Yahoo zip
This file is a "combolist"—a collection of stolen usernames and passwords—and is part of the broader history of Yahoo's massive data security failures. What is in the "121K Yahoo zip"? The phrase refers to a specific archive that
The "121K" refers to the number of accounts (approximately 121,000) contained in that specific version of the file. underground Telegram channels