SunCloudNew Stealer Log Exposes 1,457,267 Records Online

On 15-May-2026, a threat actor uploaded a fresh stealer log branded SunCloudNew straight to a Telegram channel, and it didn't take long for researchers to notice. The file contained 1,457,267 individual records pulled from infected machines, exactly the kind of data that fuels account takeover attempts for months afterward.

Why This Is Dangerous

Stealer logs work differently than a typical corporate breach. Instead of a company losing control of a database, this is malware sitting on someone's actual computer, quietly copying whatever it finds: saved browser passwords, autofill data, and the URLs those credentials belong to. Wich means the data is often fresher and more accurate than what shows up in old combolists, since it was scraped directly from the victim's browser.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs tied to each login
• 1,457,267 total records exposed

Why This Matters

Because the passwords in this leak are stored in plaintext, anyone who gets ahold of the file doesn't need to crack anything, they can copy and paste credentials straight into a login page. If you recieve any alerts about unusual sign-in activity from around mid-May 2026, this stealer log could be the reason why.

How Stealer Logs Work

A stealer log starts life as malware, often hidden inside a cracked game, a pirated app, or a fake software installer. Once it lands on a device, it imediately starts hunting for saved browser data, session cookies, and any password manager files it can reach. Everything gets bundled into a single log file and shipped back to the attacker, who then sells or dumps it on Telegram, exactly what happened here.

Check If You Are Affected

The only way to know for sure if your information was part of this SunCloudNew leak is to check it directly. HEROIC's free breach scanner searches across more than 400 billion leaked records, including stealer logs just like this one, so you can see in seconds whether your email shows up. If it does, changing that password right away is the smart move, especially if you reused it anywhere else.