The wo.com.cn Leak Exposed 1,650 U.S. Accounts and Passwords

In May 2026, HEROIC analysts identified a combolist file circulating on Telegram that exposed 1,650 records tied to wo.com.cn. The file was uploaded by a Telegram user on 25 May 2026 and bundles email addresses with plaintext passwords and the URLs those credentials were used on, giving anyone who downloads it a ready-made list of working logins.

Why This Combolist Leak Is Dangerous

Because the passwords in this file are stored in plaintext, there is no encryption or hashing standing between an attacker and a working login. Anyone who obtains this combolist can simply copy each email and password pair and try it against the site listed in the accompanying URL, no cracking or guesswork required. That makes this a low-effort, high-reward target for criminals looking for accounts they can log into today.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linking each credential to the site it was used on

Why This Matters

Even a small combolist like this one feeds directly into credential stuffing attacks, where automated tools test the same email and password pair across banking, email, shopping, and social media sites. Anyone who reused this password elsewhere is exposed to account takeover, identity theft, and potential financial fraud the moment their credentials appear in a dump like this.

How This Combolist Was Built

A combolist is a text file that pairs usernames or emails with passwords, usually pulled together from older breaches, phishing campaigns, or malware-infected devices, then compiled into one list and shared or sold on Telegram and dark web marketplaces. Unlike a single company breach, a combolist can blend data from many sources, which is why the same email and password combination often shows up in multiple leaks over time.

Check If You Are Affected

If you have ever used the email address tied to this leak, don't wait to find out the hard way. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including combolists like this one, so you can see instantly if your credentials are exposed and take action before someone else uses them.