The premiumArtHouse Cloud Leak Means Hackers May Access Your Logins

HEROIC analysts discovered a stealer log archive named premiumArtHouse Cloud New 67k.part01 circulating on Telegram in late June 2026. The file contains 24,275 exposed records pulled directly from infected computers, including email addresses, plaintext passwords, and the exact website URLs those credentials unlock. This is not a hacked company database. It is a raw collection of stolen logins harvested straight from victims' browsers.

Why This Is Dangerous

Picture someone scrolling through a spreadsheet that already tells them your email, your password, and the exact site to log into, whether that is your bank, your email provider, or your favorite shopping site. Because the passwords here are stored in plaintext, there is no encryption for an attacker to break. They can simply copy, paste, and log in as you within seconds of opening the file.

What Was Exposed

• Email addresses tied to personal accounts
• Plaintext passwords for those accounts
• URLs identifying which specific sites and services were accessed

Why This Matters

Stolen login pairs like these are the raw fuel for credential stuffing, where bots automatically test the same email and password combo across dozens of unrelated websites. Since so many people reuse passwords, one compromised account can quickly turn into several: email, banking, social media, and online retail. That chain reaction is how a single stealer log leads to full account takeover, financial fraud, or identitiy theft.

How Stealer Logs Work

Stealer log malware typically arrives disguised as pirated software, a cracked game, or a fake browser update. Once a victim runs it, the malware quietly reads saved passwords, cookies, and autofill data stored in the browser, then packages everything into a log file and sends it back to the operator. Files like this 67k batch are often split into numbered parts and traded across Telegram channels for free or for a small fee.

Check If You Are Affected

Given how large this dump is, it is worth taking a moment to check your own exposure. HEROIC's free breach scanner searches a database of over 400 billion leaked records so you can find out instantly whether your email or passwords have shown up in this or any other breach.