US Stealer Log Leak: SunCloudNew 1786 Exposes 3,443 Records

Stealer Log With 3,443 Records Uploaded to Telegram

HEROIC analysts identified a stealer log file, tracked internally as SunCloudNew 1786 - 550 LogsFile, that a Telegram user uploaded on 26 July 2026. The file contained 3,443 records pulled directly from infected computers, including email addresses, plaintext passwords, and the URLs of the websites those credentials unlock.

Why This Telegram Stealer Log Leak Is Dangerous

What makes this leak especially risky is that the passwords inside it are stored in plaintext, meaning they were never scrambled or hashed before they were stolen. Anyone who gets hold of this file does not need to crack or guess anything. They can simply read a password straight off the page and pair it with the exact website URL it belongs to, then try logging in immediately. That combination, a real email address, a working password, and the precise site it opens, is exactly what criminals look for when they want fast, low-effort access to someone else's accounts.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the sites the credentials were captured from

Why This Matters

If any of the exposed passwords match ones you still use today, whoever holds this file can walk right into your accounts. Because stealer logs pair each password with the specific URL it was stolen from, attackers do not have to guess where to try it. This makes credential stuffing and direct account takeover the most immediate risks: automated tools can run through thousands of these email, password, and URL combinations in minutes, testing them against email providers, banking portals, and other services until one works.

How Stealer Logs Work

Stealer logs come from malware that quietly infects a person's computer, often through a fake download, cracked software, or a malicious email attachment. Once installed, the malware scans the browser's saved logins, autofill data, and session information, then bundles everything it finds into a single file. That file, like this one, often gets shared or sold on Telegram channels and dark web forums, giving anyone who buys or downloads it ready-made access to real accounts.

Check If You Are Affected

If you think your email or passwords may be sitting in a stealer log like this one, do not wait to find out the hard way. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like SunCloudNew 1786, so you can see instantly whether your information has been exposed and take action before someone else does.