250 Email and Password Pairs Dumped in NINHO PRIVATE MIX Breach

HEROIC analysts identified a stealer log from the NINHO PRIVATE MIX collection, uploaded to a public Telegram channel on June 6, 2026. The file contained 250 records, each pairing an email address with a plaintext password and associated URLs. All 250 credentials were shared openly, requiring no payment or special access to obtain.

Why 250 Working Credentials Create Real Danger

Each record in this breach provides an attacker with a complete login combination: an email address and a password in readable plaintext. No technical skill is required to use these credentials. An attacker can simply copy a password from the file and paste it into a login page. The included URLs reveal the exact services each victim uses, removing any guesswork about where to attempt unauthorized access. Even at 250 records, this breach provides enough fuel for targeted attacks against individual users and automated attacks against popular platforms.

What Was Exposed

• Email addresses linked to personal and professional accounts
• Plaintext passwords ready for immediate use
• URLs mapping each user's online service footprint

Why Every Exposed Credential Carries Multiplied Risk

Cybercriminals do not stop at one account. They use credential stuffing tools to test each email and password pair against banks, email providers, social media networks, and retail websites simultaneously. Research consistently shows that most people reuse passwords across multiple services, which means a single stolen credential can give attackers access to several accounts. From there, the path to identity theft, financial fraud, and account takeover is short and well-traveled.

How Stealer Logs Turn Your Browser Into a Vulnerability

Stealer log malware targets the credentials saved in your web browser. When you allow your browser to remember passwords, those credentials are stored locally and can be extracted by malware. Stealer programs typically arrive through phishing emails, fake downloads, or malicious advertisements. Once running, they silently pull every saved password, cookie, and browsing record from the device and package it into a log file. These files are then distributed through Telegram channels and underground forums, where they are available to anyone looking for fresh credentials to exploit.

Check If You Are Affected

If you save passwords in your browser or have used any of the services referenced in this breach, check your exposure now. HEROIC offers a free breach scanner that searches over 400 billion compromised records to determine if your email address has appeared in any known data leak. A quick scan can alert you to compromised credentials so you can change your passwords and strengthen your account security before an attacker takes action.