Germany Domain Users See 10,000 Logins Exposed in HQ Combo Leak

In January 2023, a Telegram user uploaded a combo list labeled 10k germany Domain HQ Combo, exposing 10,000 records tied to German email domains. Security researchers who reviewed the file found email addresses, plaintext passwords, and the login URLs attached to each one, all harvested from devices infected with information-stealing malware.

Why This "HQ Combo" Leak Is Dangerous

Sellers on Telegram label files "HQ," short for high quality, when the logins inside are believed to still be active and untested elsewhere. That label is what makes a combo list like this one valuable to criminals and dangerous to the people in it. Every password sits in plaintext, so whoever downloads the file can read and use each login immediately, with no extra effort to crack or decrypt anything.

What Was Exposed in the 10k Germany Domain Combo

• Email addresses tied to German domains
• Plaintext passwords
• URLs of the login pages each credential unlocks

Bundling these three fields together means an attacker can identify the account holder, their password, and exactly where to use it in one step.

Why This Matters

Once a combo list like this circulates, it rarely stays in one place. Buyers on Telegram and dark web marketplaces run these 10,000 logins through automated credential stuffing tools, testing each email and password pair against banking sites, webmail, and shopping accounts. Anyone whose password was reused elsewhere faces a real risk of account takeover, identity theft, or financial fraud stemming from this single file.

How a Domain Combo List Like This Gets Made

Stealer malware infects a device, often through a cracked download or malicious attachment, and quietly collects every password saved in the browser along with the matching website. Criminals then sort these stolen credentials by email domain, in this case grouping together anyone using a German domain, before packaging the result into a combo list and uploading it for sale or free distribution.

Check If You Are Affected

Because the passwords in this file are stored in plaintext, anyone included faces immediate exposure. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including this combo list, so you can find out in seconds if you were affected. Run a free scan now and reset any password this leak may have exposed.