Leaked Weeks Ago, NINHO Hotmail Data Surfaces: 1,603 Exposed

What HEROIC Analysts Found

On 15-Jun-2026, HEROIC's dark web monitoring team spotted another stealer log surface on Telegram under the name "NINHO PRIVATE HOTMAIL uploaded by a Telegram User." This drop contained 1,603 records, each pairing an email address with a plaintext password and the URL of the site that login belongs to, separate from earlier files the same uploader had already shared.

Why This NINHO Hotmail Leak Is Dangerous

Stealer logs don't always get posted the moment they're stolen, they can sit with a seller or on a private device for days or weeks before finally surfacing on a channel like this one. That gap matters: victims often have no idea their credentials were compromised until the data is already circulating, which is exactly why 1,603 plaintext passwords are now sitting in the open with no warning to the people affected.

What Was Exposed in This Leak

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

Why This Matters for Affected Users

By the time a log like this surfaces publicly, the credentials inside may already have been tested or sold privately, making immediate action important. With 1,603 records exposed, this file is a strong candidate for credential stuffing, and anyone who reused their password elsewhere faces a real risk of account takeover on top of whatever happened to their Hotmail account.

How Stealer Logs Work

Infostealer malware quietly infects a device, often through a fake download or malicious attachment, and harvests saved passwords and autofill data without the victim noticing anything wrong. The stolen file can then change hands privately before it's eventually posted to a Telegram channel, which is often the first moment anyone outside the attacker's circle, including HEROIC's analysts, becomes aware it exists.

Check If You Are Affected

Because stolen data can circulate quietly before it's ever spotted publicly, waiting to check your exposure only gives attackers more time. HEROIC's free breach scanner searches more than 400 billion leaked records, including stealer logs like this one, so you can find out immediately and change any exposed passwords before they're put to use.