How a Telegram Stealer Log Exposed 711 NINHO PRIVATE HOTMAIL Records

HEROIC analysts identified a stealer log labeled "NINHO PRIVATE HOTMAIL" that was uploaded to a Telegram channel on July 9, 2026. The file contained 711 records harvested from infected devices, exposing email addresses, plaintext passwords, and associated URLs. This data was extracted silently by info-stealing malware before being packaged and distributed through Telegram's messaging platform.

Why This Hotmail Credential Theft Is Dangerous

Every record in this stealer log contains a working email and password combination stored in plaintext, meaning there is no encryption to slow down an attacker. Anyone who downloads this file from Telegram can immediately attempt to log into victim accounts. Because many people reuse passwords across services, a single stolen Hotmail credential can open the door to banking portals, social media profiles, cloud storage, and workplace systems.

What Was Exposed in This Stealer Log

• Email addresses tied to Hotmail and potentially other Microsoft services
• Plaintext passwords requiring no decryption or cracking to use
• URLs showing which websites and services victims were logged into when the malware captured their data

Why 711 Stolen Credentials Matter

Stolen credentials are the fuel behind credential stuffing attacks, where automated tools test email and password pairs across hundreds of websites in minutes. Even a set of 711 records gives attackers enough ammunition to compromise accounts at scale. Once inside, they can launch account takeover campaigns, steal personal information for identity theft, make unauthorized purchases, or pivot into corporate networks if any victims used their Hotmail address for work-related logins.

How Stealer Log Attacks Work

Stealer logs originate from info-stealing malware, often called "infostealers," that quietly infects a computer or mobile device. The malware typically arrives through phishing emails, pirated software downloads, or malicious browser extensions. Once installed, it silently records every username, password, cookie, and autofill entry saved in the victim's browser. The stolen data is packaged into a log file and sent to the attacker, who then uploads or sells these logs on platforms like Telegram. In this case, the file was shared freely, making all 711 exposed credentials accessible to anyone in the channel.

Check If Your Credentials Were Exposed

If you use Hotmail or any Microsoft email service, your account could appear in this stealer log or in other breaches tracked by HEROIC. Use HEROIC's free breach scanner to search across more than 400 billion compromised records and find out if your email address or password has been exposed. Early detection gives you the chance to change compromised passwords and enable multi-factor authentication before an attacker strikes.