ArtHouse Cloud Logs New v2 Breach: 38,089 Passwords Exposed

HEROIC analysts flagged a stealer log dataset known as ArtHouse Cloud Logs New v2 after it appeared on a Telegram channel on June 26, 2026. The file held 38,089 individual records, each one pairing an email address with a plaintext password and the exact login URL where that password was used. Because the data came straight off infected devices rather than a single hacked company, the accounts inside span dozens of unrelated websites and services.

Why the ArtHouse Cloud Logs New v2 Leak Is Dangerous

What makes this leak especially nasty is the pairing of a password with the actual site it unlocks. An attacker does not have to guess where you bank, shop, or log into email. The stealer log already tells them, wich means they can go straight to the login page and try the credentials without any extra reconnaissance.

Because the passwords were stored in plaintext, there is no encryption to crack. Anyone who downloads this file can copy and paste a working username and password combo in seconds.

What Was Exposed in This Leak

• Email Addresses
• Plaintext Passwords
• Login URLs tied to each account

Why This Matters

Most people reuse the same password on more than one account. That habit is exactly what fuels credential stuffing, where automated tools take a leaked email and password and try them across hundreds of other sites until one works.

Once inside, an attacker can attempt a full account takeover, locking out the real owner, harvesting saved payment details, or using the account to send phishing links to friends and coworkers. From there it is a short hop to identity theft and financial fraud, especially if the exposed email is also tied to a bank or shopping account.

How Stealer Log Breaches Like This Happen

A stealer log is not the result of a company getting hacked. It comes from malware, often hidden inside a cracked game, fake software install, or a malicious email attachment, that quietly installs itself on someone's computer.

Once running, the malware scans the browser's saved logins, autofill data, and even screenshots the desktop, then quietly sends everything it finds back to the attacker. The stolen data from thousands of infected machines gets bundled into a single file, like this one, and sold or shared for free on Telegram and dark web forums. It's a numbers game for criminals, and unfortunatly it works often enough to keep the practice going.

Check If You Are Affected by the ArtHouse Cloud Logs New v2 Leak

You do not need to guess whether your information showed up in this file or one of the thousands like it. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like this one.

Run a free scan, and if you find a match, change that password immediately, avoid reusing it anywhere else, and turn on two-factor authentication wherever it's offered.