Hotmail mrbouliz uploaded by a Telegram User: 419 Passwords Exposed

In July 2026, HEROIC analysts spotted a stealer log making the rounds on Telegram, uploaded by a user going by "mrbouliz." The file, dated 05-Jul-2026, contained 419 records pulled straight from infected devices, including email addresses, plaintext passwords, and the URLs of the sites those credentials unlock.

Why This Hotmail Stealer Log Is Dangerous

Stealer logs like this one are especially dangerous because they don't just leak a password, they leak the exact web address it belongs to. That means whoever downloads this file doesn't have to guess where to try a stolen login. They can open the matching URL, paste in the email and password, and walk straight into an account. With 419 records paired this precisely, working through the list takes an attacker minutes, not days.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to each set of credentials

Why This Matters

Because the passwords were stored in plaintext, no cracking is required, they work exactly as typed. That makes this data ready-made for credential stuffing, where attackers feed the email-and-password pairs into automated tools that try them across banking, email, shopping, and social media sites. If you've ever reused a password from one of these 419 accounts anywhere else, that other account is now at risk too. This kind of exposure typically leads straight to account takeover rather than slower, harder-to-execute crimes.

How Stealer Logs Work

A stealer log is the output of malware that infects a device, quietly reads the passwords and autofill data saved in a browser, and sends everything back to whoever is running the malware. The result is a tidy file, often shared or sold on Telegram, that pairs each stolen password with the exact website it opens. Unlike a single company's breach, a stealer log can span dozens of unrelated accounts belonging to one person, all lifted from a single infected computer.

Check If You Are Affected

The safest move is to find out before an attacker does. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like this one, and tells you immediately if your information has surfaced. If it has, changing the affected password and turning on two-factor authentication takes just a few minutes and closes the door before anyone can use it against you.