How the MIX Combolist Leaked 498 Emails and Passwords

A combolist called MIX surfaced on Telegram on 18-Jul-2026, and HEROIC's monitoring systems caught it fast. The file is small compared to some of the leaks we track, but it still contains 498 real email addresses paired with plaintext passwords and the URLs they unlock.

Why This Is Dangerous

It started, like most combolists do, as a collection: someone gathered login pairs from older breaches and malware logs, cleaned up the duplicates, and packaged them into one text file for anyone on Telegram to grab. Small size does not mean small risk. Every line in this file is a working email and password combination that someone can try right now.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs

Why This Matters

Even a list of 498 records is enough to cause real harm to the people on it. Attackers run these credentials through automated login attempts across popular websites, a technique called credential stuffing. If you used the same password anywhere else, that account is now at risk of takeover too.

How Combolists Work

Combolists like MIX are built by pulling login data from multiple older sources, whether that is previous breaches, phishing pages, or stealer malware, and merging them into one plain-text file organized by domain. Because everything is unencrypted and ready to use, distributing a combolist takes no technical skill, just a Telegram channel and a copy-paste.

Check If You Are Affected

Small leaks are easy to miss, but they are just as capable of exposing your password as the massive ones that make headlines. HEROIC's free scanner checks your email against a database of more than 400 billion leaked records, including combolists like MIX, so you can find out in seconds whether you need to change a password.