HEROIC Analysts Trace 3,728 Leaked Hotmail Logins to a Combolist

3,728 Hotmail Logins Traced to a "Good Hotmail" Combolist

HEROIC analysts traced a combolist, dated 18-Dec-2024, to a Telegram channel where it was uploaded under the name "Good Hotmail hqhotmailcomboowner." The file contains 3,728 records pairing email addresses with plaintext passwords and associated login URLs, curated specifically around Hotmail accounts.

Why Analysts Flagged This Combolist

Files labeled "good" by the people distributing them typically mean the credentials have been checked and are still working at the time of upload. Because the passwords here are stored in plaintext, anyone with a copy can read each one directly and log in immediately, using the exact URL bundled alongside it. A verified, working combolist is more valuable to attackers than an unverified one, which is part of why researchers pay attention to files marked this way.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

A verified combolist like this one is often put to use quickly, since attackers know the logins are likely to still work. If your Hotmail password shows up in this file and you have reused it on other accounts, the exposure can spread through credential stuffing to email, banking, or shopping accounts, opening the door to account takeover and financial fraud.

How Analysts Track Combolists Like This

A combolist is a compiled file of stolen login credentials, usually formatted as a URL, an email address, and a password, gathered from sources including older breaches and password-stealing malware. HEROIC analysts monitor Telegram channels and similar distribution points where uploaders share and label combolists like this one, tracking new files as they surface so exposed accounts can be identified.

Check If You Are Affected

HEROIC's database includes more than 400 billion breached records, including combolists like this one that analysts track as they appear. Run a free scan to check whether your email address and password show up here or in any other breach on file.