The Danyang Yiwang Leak Exposed 612,000 Chinese Accounts

HEROIC analysts identified the Danyang Yiwang breach, a dataset tied to the domain 212300.com and dated August 23, 2014. Danyang Yiwang operated as an online community forum and local information portal in China. The breach exposed 612,333 email addresses along with matching usernames, IP addresses, and passwords hashed with MD5.

The Danyang Yiwang Leak Exposed 612,000 Chinese Accounts

A regional community forum might not seem like a high-value target, but at over 600,000 accounts, this leak gives attackers a large, geographically concentrated list to work with. MD5 password hashes are known to be crackable with widely available tools, especially for shorter or common passwords, which means a portion of these accounts could already have working plaintext passwords circulating alongside them.

What Was Exposed in the Danyang Yiwang Breach

• 612,333 email addresses tied to 212300.com
• Usernames
• IP addresses
• Passwords hashed with MD5
• Breach dated August 23, 2014

Why This Matters for Danyang Yiwang Users

Anyone who registered on this community portal is exposed to the same risks that follow any large credential leak: credential stuffing against other accounts, account takeover if a password was reused, and the identity theft or financial fraud that can follow once an attacker has a confirmed, active email address to target with phishing.

How a Database Breach Like This Happens

A database breach happens when an attacker gains direct access to the records stored behind a website, whether through a software vulnerability, stolen admin credentials, or a misconfigured server, and copies the data out. Once a database of this size is extracted, it typically circulates on underground forums and Telegram channels, where the MD5 hashes get run through cracking tools to recover as many usable passwords as possible.

Check If You Were Affected by the Danyang Yiwang Breach

If you ever registered an account on 212300.com, it is worth checking whether your email address was part of this leak. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including this one, so you can find out in seconds and secure any accounts using a reused password.