NINHO PRIVATE HOTMAIL Combolist: 1,251 Email Accounts Leaked

What HEROIC Analysts Found

In June 2026, HEROIC's threat intelligence team identified a combolist named NINHO PRIVATE HOTMAIL after it was uploaded to Telegram by an individual user. The file contained 1,251 records pairing email addresses with plaintext passwords, along with the login URLs they were used with, targeting Hotmail and Outlook style accounts.

Why This Is Dangerous

Email accounts are often the master key to a person's digital life, since they can be used to reset passwords on banking, shopping, and social media accounts. Because the passwords in this list are stored in plaintext, anyone who downloads the file can log directly into these email accounts with no cracking required.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

A compromised email account gives an attacker a foothold to reset passwords on nearly every other account tied to it. Criminals load lists like this into automated tools that test the same email and password pair across other logins, a technique called credential stuffing. From there, account takeover, identity theft, and financial fraud can follow quickly.

How Combolists Work

A combolist pairs a username or email with a password, typically one pair per line in a plain text file. Lists labeled private, like this one, are often marketed as exclusive or less widely circulated, making the credentials inside potentially more valuable and less likely to have already been changed. These lists are usually assembled from older breaches, stealer malware, or phishing campaigns, then traded through Telegram channels and dark web forums.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against a database of more than 400 billion breached records, including combolists like this one. If your information turns up, change that password right away and enable two-factor authentication on your email account.