How Infostealer Malware Leaked 12,205 NINHO Mix Logins Online

What HEROIC Analysts Found

On 09-Jun-2026, HEROIC's dark web monitoring team traced a large stealer log back to a Telegram channel under the listing "NINHO PRIVATE MIX uploaded by a Telegram User." This version of the file was far bigger than earlier drops from the same uploader, containing 12,205 records, each one an email address paired with a plaintext password and the URL of the site that login was captured on.

Why This NINHO Mix Leak Is Dangerous

A file this size means an attacker isn't chasing one victim, they're working through thousands at once. Because every record already includes the exact website each password belongs to, there's no cracking or guesswork required, just automated tools feeding in email, password, and URL combinations one after another until some of them work.

What Was Exposed in This Leak

• Email addresses belonging to 12,205 separate accounts
• Plaintext passwords harvested directly from infected devices
• URLs identifying exactly which websites each login unlocks

Why This Matters for Affected Users

A mixed log of this scale is a prime source for large-scale credential stuffing campaigns, where attackers automate login attempts across many sites at once. Anyone in this file faces real risk of account takeover, and the danger multiplies for anyone who reuses a password across email, banking, or shopping accounts.

How This Malware Built a 12,205-Record Log

Logs like this come from infostealer malware, which infects a device through a malicious download, a cracked program, or a booby-trapped attachment, and then quietly copies every saved password, cookie, and autofill entry from the browser without the victim noticing. Criminals combine the output from many infected devices into one large file, exactly how a log this size grows from a handful of victims into over 12,000 exposed records, before selling or sharing it on Telegram.

Check If You Are Affected

With over 12,000 records in this single log, the odds that your information is included are higher than usual. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including stealer logs like this one, so you can find out immediately and change any exposed passwords before someone else uses them.