Urgent: Hotmail Combo Test by crasco_owner Leaks 3,023 Passwords

HEROIC analysts uncovered a stealer log file titled Hotmail combo test crasco_owner, uploaded to Telegram in August 2024. The dump contains 3,023 records, each pairing an email address and a plaintext password with the URL of the login page it was harvested from.

Why This Is Dangerous

This is a "combo list," meaning the credentials are formatted and packaged specifically so attackers can plug them straight into automated login tools. Because the passwords are in plaintext and each one is tied to the exact site it unlocks, no cracking or guesswork is required. Anyone with this file can immediately start testing these 3,023 logins against Hotmail and other services.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs identifying which site each credential belongs to

Why This Matters

Combo lists like this one are built for speed and scale. Attackers load them into automated tools that test each email and password pair against Hotmail and other popular sites in bulk, a technique known as credential stuffing. Anyone who reused their password elsewhere risks account takeover on those accounts too, and a compromised email can be used to reset passwords for banking, shopping, or social media accounts, opening the door to identity theft and financial fraud.

How a Combo List Breach Like This Works

A combo list is built from data gathered by information-stealing malware, then cleaned, sorted, and formatted into simple email-and-password pairs ready for automated attacks. The malware itself typically spreads through pirated software, fake cracks, or malicious downloads, quietly capturing saved logins from the victim's browser. Once collected, the data is packaged by a distributor, in this case a Telegram user going by "crasco_owner," and shared or sold for others to use.

Check If You Are Affected

If you use Hotmail or reuse the same password across different accounts, it's worth checking whether your credentials are part of this leak. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including combo lists like this one, so you can find out quickly and secure your accounts before someone else does.