MrCryptoNation Leak: What Attackers Can Do With 468 Passwords

HEROIC analysts identified a combolist called 468x Mix MrCryptoNation, uploaded to a Telegram channel on March 20, 2026. The file contains 468 records, each pairing an email address with a plaintext password and the URL of the service that credential pair was used on.

What Attackers Can Do With the MrCryptoNation Leak

With this file in hand, an attacker does not need to guess or crack anything. They can take each email and plaintext password pair, check the attached URL for where it was used, and immediately attempt to log in. If that login works and the same password was reused elsewhere, they can pivot into email, banking, or shopping accounts, often within minutes of downloading the file.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs (the sites or services tied to each credential pair)

Why This Matters

At 468 records, this is a small leak, but every record represents a real account with a real owner. Because password reuse is so common, an attacker armed with one valid email and password pair can often work their way into several other accounts belonging to the same person, turning a single leaked credential into credential stuffing, account takeover, identity theft, or financial fraud.

How Combolist Leaks Work

A combolist is a text file pairing usernames or emails with passwords, usually gathered from older breaches, malware-infected devices, or smaller scattered leaks and merged into one file, sometimes branded with a name like this one to advertise it within trading circles. These lists are shared on Telegram channels and dark web forums, then run through automated tools that test each pair against dozens or hundreds of websites within minutes.

Check If You Are Affected

Before an attacker gets the chance to use your details, find out if you are in this leak. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including this combolist, so you can confirm your exposure and change any reused passwords right away.