The HQ Germany Combo Neo3690 Leak Put 18,393 Stolen Logins Online

HEROIC analysts identified a combolist called HQ Germany Combo Neo3690 that a Telegram user uploaded in January 2025. The file contains 18,393 records pairing email addresses with plaintext passwords, along with the URLs those credentials unlock, and its naming suggests it was marketed as a high quality list targeting German accounts. Why this is dangerous: because the passwords in this file are stored in plaintext, no cracking or specialized tools are needed to use them. Anyone who obtains the list can immediately try each email and password pair against the site listed in the URL, or test the same combination against unrelated services like banking portals, email providers, and shopping accounts, hoping the victim reused their password. What was exposed: email addresses, plaintext passwords, and the URLs tied to each set of credentials. Why this matters: at over 18,000 records, this combolist gives attackers a sizable batch of ready-to-use logins to run through automated credential stuffing tools. Anyone included in this file who reused a password across multiple sites faces a real risk of account takeover, financial fraud, or identity theft, and being labeled a high quality list means criminals may prioritize it over lower quality data. How combolists work: a combolist is a compiled file of email and password pairs, typically gathered from older breaches, stealer malware, or phishing campaigns and repackaged by the person distributing it. Lists marketed as high quality or targeted to a specific country, like this one focused on Germany, are often assembled and curated more carefully, making the credentials inside more likely to still be active and valuable to criminals. Check if you are affected: HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including combolists like this one. Run a free scan to see if your credentials were exposed and get guidance on changing any reused passwords before they can be used against you.