10K Mixed Country Combo Leak Exposes Global Passwords

In October 2025, HEROIC analysts identified a stealer log called 10K MIXED COUNTRY COMBO uploaded to a Telegram channel. The file contained 10,490 records pulled from infected devices spanning multiple countries, with each entry pairing an email address, a plaintext password, and the specific login URL it belonged to.

A Global Spread, Not a Single Region

Unlike many breaches tied to one country or company, this combo list was assembled from victims across several regions, sorted together into one file rather than separated by nationality. That mixed structure makes it appealing to attackers running large scale credential stuffing campaigns, since one download gives them targets scattered across many different countries and platforms at once.

Why This Is Dangerous

Each password is stored in plaintext and matched directly to its login URL, so attackers do not need to crack or guess anything. They can immediately test the exact email and password combination on the exact site it belongs to, no matter what country the victim is located in.

What Was Exposed

• Email addresses
• Plaintext passwords
• Corresponding login URLs

Why This Matters

Combo lists spanning multiple countries are especially useful for large scale credential stuffing operations. Attackers automate login attempts across international platforms, banking apps, and email providers, hoping that reused passwords open the door. The result can be account takeover, identity theft, or financial fraud that crosses borders just as easily as the data did.

How Stealer Log Breaches Work

Infostealer malware infects devices worldwide through phishing emails, cracked software, and malicious downloads, then quietly harvests saved browser passwords and login data. That stolen information gets compiled into a combo list, sometimes mixing victims from many countries into a single file, and sold or shared on Telegram and dark web forums.

Check If You Are Affected

Breaches like this one do not stay confined to one country or region, so anywhere in the world you are, it is worth checking. HEROIC's free breach scanner searches a database of over 400 billion exposed records to instantly show you if your information turned up in this leak.