The wo.cz Combolist Exposed 1,574 Login Credentials Online

In May 2026, HEROIC analysts identified a combolist file circulating on Telegram that exposed 1,574 records tied to wo.cz. The file was uploaded by a Telegram user on 25 May 2026 and pairs email addresses with plaintext passwords and the URLs those credentials were used on, handing anyone who finds it a ready-to-use list of working logins.

Why This Combolist Leak Is Dangerous

The passwords in this file are stored in plaintext, meaning there is no hashing or encryption for an attacker to break through. Anyone who gets hold of this list can immediately try each email and password pair against the site named in the URL, no technical skill required. That low barrier to entry is exactly what makes small combolists like this one so easy for criminals to exploit at scale.

What Was Exposed

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

Why This Matters

Combolist data like this feeds directly into credential stuffing attacks, where bots automatically test the same email and password combination across banking, email, and shopping sites. If you reused this password anywhere else, you're exposed to account takeover, identity theft, and financial fraud the moment your credentials surface in a dump like this one.

How This Combolist Was Built

A combolist is a plain text file pairing usernames or emails with passwords, typically gathered from older breaches, phishing pages, or malware-infected computers and then compiled into one file for sharing or sale on Telegram and dark web forums. Because combolists blend data from multiple sources, the same credential pair can resurface in leak after leak long after the original breach.

Check If You Are Affected

If you've ever used the email address linked to this leak, don't leave it to chance. 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 find out instantly whether your credentials are exposed and act before someone else does.