The MIX_1789 Leak Gave Hackers Working Logins for 123 Accounts

HEROIC analysts found a combolist named MIX_1789 uploaded to a Telegram channel on 3 April 2026. The file contained 123 records pairing email addresses with plaintext passwords, along with associated URLs, a small but fully usable set of login credentials.

Why This Is Dangerous

Because the passwords in MIX_1789 are stored in plaintext, there is no cracking or decryption step standing between an attacker and a working login. Anyone who downloads this file can read all 123 email and password pairs instantly and start attempting to log into the matching accounts right away.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

A list of 123 records may look small next to larger breaches, but for the people whose credentials appear in it, the risk is just as real. Attackers use combolists like MIX_1789 to run credential stuffing attempts, testing the same email and password combination across banking, email, and social media sites. If a password in this file matches one used elsewhere, that other account becomes vulnerable to takeover as well.

How Combolists Work

A combolist pairs usernames or email addresses with matching passwords in a simple text file, one credential set per line. Unlike a stealer log pulled fresh from an infected device, a combolist such as MIX_1789 is often compiled from older leaks or previously circulated data, then repackaged and shared on Telegram and dark web forums. The straightforward format means even a small file like this one can be put to use immediately.

Check If You Are Affected

Even a small leak like MIX_1789 is worth checking, especially if you reuse passwords across accounts. HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, including combolists like this one, so you can find out your exposure and secure any affected accounts.