Napoleon Corp Dark Web Leak Exposes 644,324 Passwords

In November 2025, HEROIC's dark web intelligence team tracked a stealer log labeled "UP 425 2.3KK Napoleon Corp" as it surfaced on a Telegram channel. Intel gathered from the file confirms 644,324 records were exposed, each combining an email address, a plaintext password, and the login URL tied to that account.

Dark Web Chatter Around This Leak

Files labeled with a "KK" tag, shorthand for thousands in underground slang, tend to attract fast attention from buyers browsing Telegram marketplaces. Intelligence gathered around this specific upload shows it being shared across multiple channels within a short window, a sign that resellers were already repackaging the data for wider distribution.

This kind of rapid circulation is common for logs branded with a distinct name like "Napoleon Corp," since a catchy label makes the file easier to market to buyers looking for freash credential batches.

Why This Is Dangerous

With 644,324 working logins in circulation, an attacker does not need any special skill to cause damage. The email, password, and URL are all handed over together, ready to be tested or sold in smaller batches to other criminals.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

A leak of this size feeds directly into large scale credential stuffing operations, where bots test stolen logins against hundreds of sites within minutes. Because so many people reuse passwords, this single file can trigger a wave of account takeovers, identity theft, and financial fraud long after the initial upload fades from view.

How Stealer Logs Work

Stealer malware infects a device through a fake download, cracked software, or a phishing link, then silently harvests every saved password and cookie from the browser. The results get bundled into a log file and dumped onto Telegram or dark web forums, sometimes under a brand name meant to build buyer trust.

Victims almost never know their device was compromised until their accounts start acting strange or money starts disappearing.

Check If You Are Affected

Dark web intelligence like this only matters if you know where you stand. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, giving you an instant answer on whether your data is part of this leak or any other.

Run a free scan now before your credentials get passed along to someone else.