502,026 Passwords Exposed Online in Napoleon Corp Breach

502,026. That is how many records HEROIC analysts found inside a stealer log tied to Napoleon Corp, uploaded to Telegram in February 2026. Each record contains an email address, a plaintext password, and the login URL the credential belongs to.

Why This Is Dangerous

Half a million working password and email combinations is enough to fuel large scale automated attacks. Because the passwords are stored in plaintext and matched to their exact login pages, an attacker does not need to break any encryption or guess where to try each one. The data is ready to use the moment it is downloaded, wich is exactly why leaks of this size spread so quickly.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• Login URLs

Why This Matters: Scale Multiplies the Risk

With 502,026 records in circulation, this is not a small isolated incident. Attackers routinely take leaks of this size and feed them into credential stuffing tools, automatically testing each pair against banking, email, and shopping platforms. At this scale, the fallout can include widespread account takeover, identity theft, and financial fraud affecting hundreds of thousands of people at once.

How a Leak This Large Gets Built

Large stealer logs like this one are usually the combined result of infostealer malware infecting many devices over time, sometimes through cracked software, sometimes through phishing emails or fake downloads. Each infected device contributes its own saved browser passwords and login pages, and those records eventually get merged into one massive file.

Once compiled, the log is uploaded to Telegram, where it can be downloaded an unlimted number of times by anyone with access to the channel, multiplying its reach far beyond the original attacker.

Check If You Are Affected

With over half a million records exposed, the odds of being affected are real. HEROIC's free breach scanner checks your email against more than 400 billion leaked records and tells you instantly whether you are part of this breach or any other. Run a free scan today and change any password flagged as compromised.