How Stealer Malware Led to 18,043 Stolen Logins in the Bugatti_Cloud Dump

In June 2026, HEROIC analysts traced a stealer log labeled Bugatti_Cloud Bugatti_Man 20.06.part01 back to a Telegram upload. The file contains 18,043 records, each combining an email address, a plaintext password, and the URL of the account the credential unlocks. This is one of the larger stealer batches HEROIC has tracked recently, and it shows exactly how info stealing malware turns a single infected device into thousands of exposed logins.

Why This Is Dangerous

Because the malware behind this leak grabbed passwords straight from the browser in plaintext form, there is no encryption standing between the data and an attacker. Anyone who downloads the file can start testing logins immediately across email, shopping, and social accounts.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs showing which accounts each credential belongs to

Why This Matters

Large batches like this one are exactly what powers credential stuffing campaigns, where attackers automate login attempts across hundreds of websites at once. Anyone who reused a password anywhere is at risk of account takeover, and if financial or shopping accounts are among the URLs, victims could face direct financial fraud or identity theft.

How Stealer Log Malware Works

The malware behind Bugatti_Cloud most likely spread through a cracked application, a fake game mod, or a malicous browser extension. Once installed, it silently reads through the browser's saved password vault, pulls out every stored login and its matching URL, and packages the results into a single log file. That file is then uploaded, often to a Telegram channel, and traded or sold to other cybercriminals, exactly the pattern seen with this 18,043 record dump.

Check If You Are Affected

To find out if your credentials are part of the Bugatti_Cloud leak or any other breach, try HEROIC's free breach scanner. It searches a database of over 400 billion exposed records in seconds and gives you a clear path to secure your accounts if you are affected.