Breach Intelligence Report 16 Apr 2026

Napoleon Corp Leak: Exact Login URLs Exposed for 56,905 Users

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs UP 414 257KK Napoleon Corp uploaded by a Telegram User
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Records Exposed 56,905
Source Type Stealer log
Origin United States
Password Type plaintext

Most breach reports talk about emails and passwords in general terms, but this leak deserves a closer look at one specific detail: the URLs. The file, labeled "UP 414 257KK Napoleon Corp," surfaced on Telegram on October 27, 2025, and it paired 56,905 stolen logins with the exact web address each one was used on.


Why This Is Dangerous

Zoom in on that URL field for a second, because its the part of this leak that matters most. An email and password alone tells an attacker something, but the exact login URL tells them everything, which site, which login page, wich exact form field the password goes into. There's no guesswork left, the file hands over a direct path into 56,905 different accounts.


What Was Exposed

The Napoleon Corp file contained 56,905 records, confirmed to include:

  • Email Addresses
  • Plaintext Passwords
  • URLs (the exact login page tied to each credential)

Its that third item, the URL, that turns a seperate list of emails and passwords into a fully mapped set of ready to use logins.


Why This Matters

Most victims aren't even aware of the existance of files like this one sitting on Telegram, let alone that their exact login page is attached to their stolen password. If you're one of the 56,905 people in this dump, an attacker doesn't need to guess where to try your credentials, the URL already tells them. That makes fast, automated account takeover much more likely here than in a leak without that detail.


How "Napoleon Corp" Stealer Logs Work

This kind of file comes from malware that infects a device and records everything typed into a browser, including the exact page a password was entered on. That URL gets bundled together with the email and password before the whole set is uploaded, exactly as it was here under the Napoleon Corp label. It's a small technical detail, but it definately makes the leak more dangerous than a plain list of credentials.


Check If You Are Affected

Given how precisely this leak is mapped out, its worth checking your exposure right away. HEROIC's free breach scanner searches more than 400 billion leaked records and will tell you if your email shows up in this dump or any other, so you can update the affected password before someone else uses it.

Breach Breakdown

Domain UP 414 257KK Napoleon Corp uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 16 Apr 2026
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Breach Rank #N/A by affected users
Impact Score
2
sensitivity + scale + recency
Est. Financial Impact $411.8K fraud, phishing & misuse risk
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Identity Theft Risk Score

Risk Score: 8.7/10 - Critical

Data Exposure Analysis

Passwords Critical
Financial High
Personal Medium
Social High
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Breach Timeline Analysis

March 2024 Multiple credentials exposed in recent data breach
January 2024 Password found in dark web marketplace
December 2023 Personal information leaked in major security incident

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Critical: Change compromised passwords immediately and enable 2FA on all accounts

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