One Telegram Upload, 10,189 Logins: The Bugatti_Cloud Stealer Log Leak

On July 30, 2026, HEROIC analysts found a stealer log file labeled "Bugatti_Cloud Bugatti_Man 30.07.part03" uploaded to a Telegram channel. The log contains 10,189 records of credentials harvested directly from infected devices, including email addresses, plaintext passwords, and the URLs and endpoints those logins connect to. Why This Is Dangerous: stealer logs are different from typical leaked databases because the data comes straight from malware running on a victim's own computer at the moment they logged in. That means the passwords are current, not years old, and are captured alongside the exact website or API endpoint they unlock, making them far more usable to an attacker than an old, stale password dump. What Was Exposed: email addresses, plaintext passwords, and URLs and API endpoints tied to each login. Why This Matters: because stealer logs capture live, working credentials, the accounts inside them are especially vulnerable to immediate account takeover. An attacker doesn't need to guess or crack anything, they can log in directly using the same endpoint the victim used. With 10,189 records in this single upload, the potential for follow-on identity theft and financial fraud is significant. How Stealer Logs Like This Get Created: stealer malware, often disguised as cracked software, game cheats, or fake downloads, installs quietly on a victim's device and copies saved passwords, browser autofill data, and login sessions in the background. The infected device then sends this data to the attacker automatically, who compiles it into a log file and shares or sells it, often broken into numbered parts like this one. The presence of part03 in the file name suggests this is one piece of a larger batch pulled from the same malware campaign. Check If You Are Affected: if your device has ever been infected with stealer malware, your saved logins could already be circulating like this. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs, so you can find out quickly if you need to change your passwords and secure your accounts.