This NINHO Hotmail Leak Could Unlock 729 Other Accounts Too

What HEROIC Analysts Found

On 02-Jul-2026, HEROIC's dark web monitoring team found yet another stealer log tied to the same uploader, posted to Telegram as "NINHO PRIVATE HOTMAIL uploaded by a Telegram User." This file contained 729 records, each pairing an email address with a plaintext password and the URL of the site that login was captured on.

Why This NINHO Hotmail Leak Is Dangerous

An exposed Hotmail login is rarely just about one account. Email addresses are used to receive password reset links for banking, shopping, and social media accounts, so if an attacker takes over the inbox tied to one of these 729 records, they can chain that access into resetting passwords on other accounts the victim owns, one after another.

What Was Exposed in This Leak

• Email addresses tied to Hotmail-linked accounts
• Plaintext passwords captured from infected devices
• URLs showing exactly which sites each login unlocks

Why This Matters for Affected Users

Because email inboxes are the key that unlocks password resets everywhere else, this leak's real risk isn't limited to the 729 accounts listed directly. Credential stuffing and account takeover can turn a single compromised email into a foothold for reaching banking, shopping, or social accounts that were never part of the original leak.

How Stealer Logs Work

Infostealer malware infects a device through things like cracked software or malicious downloads, then quietly copies every saved password and autofill entry from the browser. The result is a log like this 729-record file, sold or shared on Telegram, where attackers use each entry as a starting point to try chaining their way into whatever else the victim has access to.

Check If You Are Affected

Since one exposed email account can put several others at risk, it's worth checking your exposure before that chain reaction starts. HEROIC's free breach scanner searches more than 400 billion leaked records, including stealer logs like this one, so you can find out in seconds and secure your accounts before someone else does.