Webmail Combo Leak Exposes 3,308 Hotmail Emails and Passwords

3k Hotmail Combo Stealer Log: 3,308 Webmail Records Exposed

On 20-Oct-2024, HEROIC analysts identified a file named "3k HOTMAIL COMBO 2024-10-20_16-11-59" uploaded by a Telegram user trading in stolen login data. The file contained 3,308 records, each pairing a Hotmail email address with a plaintext password and the URL of the site the login was captured on, focused entirely on the webmail sector.

Why This Stealer Log Is Dangerous

Targeting webmail accounts specifically makes this leak more dangerous than a random mix of stolen logins, because email inboxes are used to verify identity and reset passwords across nearly every other online service. Anyone with access to one of these Hotmail accounts can use it to take over banking, shopping, or social media accounts tied to that email address, all without needing to know those other passwords. Since the passwords here are stored in plaintext and paired with the exact login URL, an attacker can access the inbox immediately.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the sites the credentials were used on

Why This Matters

Because webmail accounts sit at the center of so many other logins, anyone in this file faces a heightened risk of account takeover that extends well beyond their inbox, through credential stuffing and password reset abuse on other services. This is exactly why leaks targeting email providers like Hotmail deserve extra attention compared to a single-site password leak.

How Stealer Logs Work

Stealer logs come from malware that infects a victim's device and quietly harvests saved browser logins, passwords, and the sites they belong to. Criminals then organize this stolen data into combo files sorted by the email provider or site involved, like this Hotmail-focused combo, and distribute it through Telegram channels and dark web marketplaces where other attackers can put it to use.

Check If You Are Affected

Since a compromised webmail account can open the door to other accounts tied to it, it is worth checking your exposure directly. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one, so you can quickly find out and secure your inbox before it is used against you.