Identity Theft Just Got Easier After the 1350_Japan_KRDCLOUD Leak

HEROIC analysts identified a combolist named 1350_Japan_KRDCLOUD that a Telegram user uploaded on August 5, 2026. The file contains 1,350 records pairing email addresses with plaintext passwords and the URLs those credentials were used on. The "Japan" and "KRDCLOUD" tags in the name suggest the compiler grouped these credentials by region and by a specific cloud service, a common way sellers organize combolists for buyers with a particular target in mind.

Why This Is Dangerous

Because the passwords in this file are stored in plaintext, an attacker gains immediate, working access rather than a puzzle to solve. With 1,350 email and password pairs, along with the URLs tied to each one, someone can log directly into the associated accounts and, from there, look for personal details, saved payment information, or other data that supports identity theft. Every piece of information an attacker gains from one account makes the next one easier to compromise.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs

Why This Matters

Identity theft rarely happens from a single piece of data. It builds from small exposures like this one: an email address here, a reused password there, a cloud account that reveals a real name or additional contact details. For the 1,350 people in 1350_Japan_KRDCLOUD, this leak gives an attacker a working foothold that could be combined with other leaked information to build a more complete profile, making fraud and impersonation significantly easier to pull off.

How Combolists Work

A combolist is a plain text file of login pairs, typically formatted as email:password, gathered from sources such as phishing pages, malware infections, or older breaches. Compilers often sort their combolists by theme, in this case by region and by a named cloud service, so buyers can purchase access aimed at a specific type of target. Files like 1350_Japan_KRDCLOUD circulate on Telegram channels, where they are traded, resold, and sometimes merged with other lists over time.

Check If You Are Affected

To find out if your email address is part of this combolist or any other exposed dataset, run a free scan with HEROIC's breach checker. It searches a database of more than 400 billion compromised records, giving you a fast way to see if your information needs protecting before it is used against you.