5,401 Plaintext Passwords Dumped on Telegram via Ninho Private Mix

HEROIC analysts discovered a stealer log compilation titled "Ninho Private Mix" that was shared on a Telegram channel in June 2026. The file contains 5,401 records with email addresses, plaintext passwords, and the URLs where those credentials were used. With thousands of login pairs available in readable form, this dump represents a significant pool of immediately exploitable credentials.

Why Plaintext Passwords Are an Open Invitation

Passwords stored or transmitted in plaintext are the most dangerous type of credential exposure. Unlike hashed passwords that require time and computing power to crack, plaintext passwords are ready for immediate use. An attacker who downloads the Ninho Private Mix file can begin logging into accounts within seconds of opening it.

At 5,401 records, this is not a trivial leak. Automated credential-stuffing tools can cycle through the entire dataset against major platforms in minutes. Every account protected by one of these exposed passwords is vulnerable from the moment this file reached Telegram.

What Was Exposed in the Ninho Private Mix Dump

• Email Addresses — Thousands of unique email accounts that serve as login identifiers across multiple platforms, making them prime targets for both unauthorized access and phishing campaigns.
• Plaintext Passwords — Unencrypted, fully readable passwords extracted directly from victims' browsers by infostealer malware, requiring zero effort to weaponize.
• URLs — The exact login pages and services tied to each credential pair, eliminating guesswork for attackers and enabling surgical account takeover attempts.

Why 5,401 Leaked Credentials Multiply the Threat

The scale of this dump amplifies the risk considerably. Studies indicate that roughly 65% of people reuse the same password across multiple services. With 5,401 credential pairs, attackers can potentially access tens of thousands of accounts by testing each password against common platforms like Gmail, Facebook, Amazon, and banking portals.

Credential stuffing at this volume is highly profitable for threat actors. Even a small success rate of 1-2% would yield dozens of compromised accounts, each of which can be monetized through fraud, identity theft, or resale on underground markets. The inclusion of URLs in this dump makes the attacks even more efficient since attackers know exactly where each credential was originally used.

How Stealer Logs Fuel the Credential Economy

The Ninho Private Mix file is a product of infostealer malware, a category of malicious software designed to silently extract saved credentials, cookies, and autofill data from infected devices. Common infostealers like RedLine, Raccoon, and Vidar target browser password stores, capturing every saved login in seconds.

Once collected, these credentials are packaged into log files and distributed through Telegram channels, dark web marketplaces, and private forums. Compilations like Ninho Private Mix often aggregate logs from multiple infected machines, creating dense collections that appeal to both opportunistic hackers and organized cybercrime groups looking for fresh, untested credentials.

Check If Your Credentials Were Exposed

With 5,401 records in this single dump, the odds of finding your credentials in a stealer log compilation are higher than many people realize. HEROIC provides a free breach scanner powered by a database of more than 400 billion compromised records, giving you a comprehensive view of your exposure across thousands of known breaches and leaks.

Run a scan with your email address to find out whether your information appears in the Ninho Private Mix dump or any other breach in our index. If you discover exposed credentials, update those passwords immediately, activate two-factor authentication on every account that supports it, and avoid reusing passwords across different services.