Combo Hotmail 5 Leak: What Is a Stealer Log? 562 Records Exposed

HEROIC analysts identified a stealer log dump labeled "combo Hotmail 5," uploaded to a Telegram channel on 09-Jun-2026. The file contained 562 records, including email addresses, plaintext passwords, and the URLs of the sites where those logins were used.

What Is a Stealer Log, and Why Does It Matter Here

A stealer log is not a traditional company data breach. It is the output of malware that ran on a victim's own device, quietly copying down every saved password and login as it was used. That is exactly what happened here: the file is filled with plaintext passwords, each one tied to the specific website it unlocks, which is what makes stealer logs so immediately usable by criminals.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the websites tied to each login

Why This Matters

Because the passwords are unencrypted and mapped to specific sites, this data allows for immediate account takeover on any service where the credentials remain valid. If any of these passwords were reused on email, banking, or shopping accounts, attackers can also attempt credential stuffing to break into those accounts too.

How Stealer Logs Work

Stealer log malware infects a device, often disguised as cracked software, a game cheat, or a malicious attachment, and then silently collects saved passwords, autofill entries, and browser session data. The results are compiled into a log file and sold or shared on Telegram channels and dark web forums, often within hours of being harvested.

Check If You Are Affected

If you use a Hotmail or Outlook address, use HEROIC's free breach scanner to check whether your credentials appear in this or any other leak. It searches a database of more than 400 billion breached and leaked records to show you instantly if your information has been exposed.