Combo Mix 6 Telegram Leak Exposes 46,613 Plaintext Passwords

In March 2023, a threat actor uploaded a stealer log file labeled "Combo Mix 6" to a Telegram channel, exposing 46,613 records. The file contains email addresses, plaintext passwords, and the URLs those logins belong to, all harvested from malware-infected devices rather than taken from a single company's servers.

What a "Combo Mix" Actually Is

A combo mix is exactly what it sounds like: a blended batch of stolen login data, gathered from multiple stealer log sources and repackaged into one file. Instead of coming from a single site or service, the emails, passwords, and URLs in Combo Mix 6 were pulled from whatever accounts happened to be saved in the browsers of infected devices, then combined and labeled for resale.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the accounts and sites accessed

Why This Matters

Because the passwords in this file were stored in plaintext, there is nothing standing between a criminal and a working login. That makes credential stuffing, testing the same email and password combination across many different sites, quick and easy to automate. If you reuse a password across accounts, one exposed login here can lead to a takeover of your email, banking, or shopping accounts, and from there to identity theft or direct financial fraud.

How Combo Lists Like This One Get Made

Stealer malware typically spreads through cracked software downloads, fake updates, or malicious attachments. Once installed, it quietly copies saved browser passwords, autofill data, and session information, then packages it into a log file. Sellers and forum members often combine several of these logs into a single "combo mix," as with this file, to sell a larger and more attractive dataset on Telegram and dark web marketplaces.

Check If You Are Affected

The only way to know for sure is to check. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including combo lists and stealer logs like this one, and tells you right away if you have been exposed. If you find a match, change that password immediately, update it anywhere else you reused it, and turn on two-factor authentication wherever it is available.