12,936 Records Exposed: 13.9K Mix Combo List Full Valid Leak

HEROIC analysts uncovered a stealer log dump on July 22, 2026, listed on Telegram under the name "13.9K Mix Combo list Full Valid." The file contains 12,936 records pulled from devices infected with credential-stealing malware, including email addresses, plaintext passwords, and the exact web addresses (URLs) those login pairs unlock.

Why This Stealer Log Is Dangerous

Unlike a typical password dump, a stealer log doesn't just hand attackers an email and password. It hands them the URL the credentials belong to as well. That means whoever buys or downloads this file knows exactly which site, app, or service each login opens, no guessing, no trial and error. Combined with the fact that the passwords were stored in plaintext, anyone with the file can start logging into accounts immediately.

What Was Exposed

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

Why This Matters

Because the passwords in this file are plaintext and already paired with the exact site they unlock, the most immediate risk is account takeover: an attacker can log straight into the matched account without cracking anything. If any of these 12,936 people reused that same email and password combination elsewhere, credential stuffing tools can quickly test the pair against banking, email, and shopping sites too.

How Stealer Logs Work

Stealer logs come from malware that silently infects a device, then quietly copies saved usernames, passwords, and browsing history straight out of the browser's autofill data. The infected machine sends that haul back to the attacker, who packages it into a "combo list" like this one and shares or sells it on Telegram and dark web forums, ready for other criminals to use.

Check If You Are Affected

If you think your email or credentials could be part of this stealer log, don't wait to find out the hard way. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like this one, so you can see instantly if you've been exposed and take action before someone else logs in first.