microsoft 8 uploaded by a Telegram User: Is Your Email in This Leak?

In May 2026, HEROIC analysts discovered a stealer log labeled microsoft 8, uploaded to a Telegram channel by an unnamed user. The file contained 1,213 records, each made up of an email address, a plaintext password, and the URL of the login page that credential pair unlocks. The label suggests this batch is one in a series of Microsoft-linked credential collections pulled from malware infected devices and shared through the same Telegram source.

Why This Is Dangerous

If your email address is among these 1,213 records, your password is sitting in this file in plain text, ready to be used the moment someone opens it. Each entry is paired with the exact URL of the account it belongs to, so there is no guesswork involved for whoever finds it. That combination of a working password and a direct link to where it works is what makes stealer logs so immediately usable.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs for the associated login pages

Why This Matters

If you reuse the password tied to your email address on other sites, banking, shopping, or social media, an attacker who finds your record in this file can try that same password everywhere else through credential stuffing. Because the password is stored in plaintext, there is no encryption slowing down anyone who wants to use it against you.

How Stealer Logs Work

Stealer logs come from infostealer malware, malicious software that quietly infects a device, often through a cracked program, fake update, or phishing attachment, and then collects saved browser passwords, autofill entries, and session data. That information is sent back to whoever controls the malware and is frequently repackaged into files like this one before being shared or sold on Telegram channels and dark web forums.

Check If You Are Affected

Do not wait to find out if your email is part of this leak. HEROIC's free breach scanner checks your address against a database of more than 400 billion breached records, including stealer logs like microsoft 8, so you can see in seconds whether you are affected and change your password before someone else uses it.