19k Mix Combo Leak: 18,817 Emails and Passwords Exposed

On April 24, 2023, a Telegram user uploaded a combo list called "19k Mix Combo," containing 18,817 records of stolen email addresses, plaintext passwords, and the URLs those logins were tied to. A "mix combo" means the credentials inside were not stolen from one single source. They were pulled together from multiple stealer malware infections and bundled into one file for wider distribution.

Why This Is Dangerous

Because this is a mix of credentials from different sources, the accounts inside span all kinds of websites, from email providers to online stores to random logins nobody expects to be at risk. That variety makes the file more valuable to attackers, since it likely includes at least a few high-value accounts hidden among the rest.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs (the site each login was captured from)

Every password in this file is stored in plaintext, meaning it was captured exactly as typed, with nothing hiding or scrambling it. Anyone who downloads the file can use the credentials right away.

Why This Matters

Files like 19k Mix Combo are exactly what powers credential stuffing attacks: automated tools take each of the 18,817 email and password pairs and try them across dozens of other popular websites. If a password was reused anywhere else, that account is now exposed too, opening the door to account takeover, identity theft, and financial fraud.

How Mix Combo Files Are Created

Stealer malware infects individual devices and quietly copies saved browser passwords, autofill entries, and login cookies. The stolen data from many separate infections is then combined by whoever controls it, mixed together into a single combo file like this one, and uploaded to Telegram for other cybercriminals to download and use.

Check If You Are Affected

The only way to know if your email is among the 18,817 records in this leak is to check directly. HEROIC's free breach scanner searches more than 400 billion leaked records, including mix combo files like this one, so you can see your exposure in seconds and secure any accounts at risk.