Inside NINHO PRIVATE MIX: How the Combolist Exposed 5,626 US Logins

HEROIC analysts have flagged a combolist file called “NINHO PRIVATE MIX uploaded by a Telegram User,” which surfaced on Telegram on July 7, 2026. The file contains 5,626 records tied primarily to accounts in the United States, pairing email addresses and usernames with plaintext passwords and the URLs those credentials unlock.

Why This Is Dangerous

Each of the 5,626 records in this file links a real email address to its matching plaintext password and the exact site it opens. There is no encryption standing between an attacker and a working login, and no guesswork needed to figure out where to use it. That makes the data usable within minutes of being downloaded.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to each set of credentials

Why This Matters

Anyone in this file who reused a password on another account faces a real risk of credential stuffing, where attackers try the same email and password combination across banking sites, email providers, and social platforms. If access to an email account is gained this way, it often becomes the key to resetting passwords elsewhere, opening the door to identity theft and financial fraud.

How Combolists Work

A combolist is a curated file of email or username and password pairs, typically pulled together from older breaches and stealer logs and organized into one list for easy use. Criminals trade combolists like this one because they can be loaded directly into automated tools that attempt each login across many sites at once. The NINHO PRIVATE MIX file follows the same pattern, bundling 5,626 credential pairs with the URLs needed to try them immediately.

Check If You Are Affected

To find out if your email address appears in this leak or any other breach, HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records. Run a scan now and update any passwords you have used on more than one site.