CartelJohnDoe Stealer Log Leaks 18,523 Passwords Online

HEROIC's threat intelligence team identified a stealer log titled "CartelJohnDoe" shared on Telegram, dated August 5, 2026. The file contains 18,523 records harvested from infected devices, including email addresses, plaintext passwords, and the URLs those credentials unlock.

Why the CartelJohnDoe Leak Is Dangerous

These credentials were pulled directly from infected devices, meaning they were active logins at the time of infection. Because the passwords are stored in plaintext and matched to the exact site URL, an attacker can log in immediately with no cracking or guessing required.

What Was Exposed in the CartelJohnDoe Stealer Log

• Email addresses
• Plaintext passwords
• URLs of the websites or services the credentials belong to

Why This Stealer Log Matters

With over 18,000 freshly harvested credential pairs, this log carries a real risk of account takeover for everyone included. If any of the affected logins are email or financial accounts, an attacker can use that access to reset other passwords or attempt fraudulent transactions.

How a Stealer Log Like This Works

Stealer malware infects a device, often through a fake download or malicious link, then silently copies saved browser passwords, autofill data, and login URLs before sending the results back to the attacker. The resulting log is then sold or shared on Telegram, where it can be used directly or folded into a larger combolist.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, including stealer logs like CartelJohnDoe. If your information shows up, change the affected password right away and run a malware scan on your device.