HEROIC Found NINHO PRIVATE HOTMAIL in Private Telegram Channels

HEROIC analysts identified this stealer log on 25-May-2026. The breach exposed 987 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as NINHO PRIVATE HOTMAIL uploaded by a Telegram User.

Why This Is Dangerous

This file, labeled as a private collection of Hotmail credentials, contains 987 email addresses and plaintext passwords. The label private suggests this stealer log was shared within restricted channels before becoming more widely available. Hotmail accounts in a targeted collection like this one are at immediate risk of unauthorized access, since plaintext passwords can be used directly without any additional processing.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (website addresses where credentials were captured)

Why This Matters

HEROIC analysts found the NINHO PRIVATE HOTMAIL stealer log circulating in private Telegram channels, indicating this data was being actively shared among threat actors before becoming more broadly available. Files distributed in private channels are often used quickly, meaning the 987 Hotmail accounts in this file may have already been targeted. The real-world risks include account takeover, access to connected Microsoft services, interception of personal communications, and identity theft.

How a Stealer Log Works

Stealer malware captures credentials from infected devices by reading saved passwords stored in web browsers and applications. For each account, it records the email address, the password, and the URL of the website. These records are compiled into a log file and sent to the attacker. Private stealer logs, like this one, are often shared in restricted Telegram groups before being released more broadly, giving an inner circle of attackers early access to the stolen credentials.

Check If You Are Affected

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