HEROIC Analysts Found the ArtHouse Cloud Dump on the Dark Web

HEROIC analysts discovered the ArtHouse Cloud stealer log circulating on the dark web, uploaded by a Telegram user on April 6, 2026. The dataset contains 8.7 million records and exposes email addresses, plaintext passwords, and URLs, making it one of the larger credential dumps identified in 2026 so far.

Why the ArtHouse Cloud Breach Is Dangerous

The ArtHouse Cloud dump combines email addresses with plaintext passwords and the exact site URLs where those credentials were active. With 8.7 million records available, attackers have a massive pool of working login data to exploit. There is no decryption step needed: each record is immediately usable in automated credential stuffing attacks against the listed sites and any platform where victims reused the same credentials.

What Was Exposed in the ArtHouse Cloud Leak

• Email Addresses
• Plaintext Passwords
• URLs

Why This ArtHouse Cloud Data Puts You at Risk

At 8.7 million records, the ArtHouse Cloud leak affects a wide range of users. If your email and password appear in this dataset, any account using the same credentials is at risk, including email inboxes, online banking, shopping accounts, and social media profiles. Attackers also use exposed email addresses for targeted phishing, impersonation, and fraud campaigns. The scale of this dump increases the likelihood that your data was captured.

How Stealer Logs Work

Stealer logs like the ArtHouse Cloud dump are compiled from malware infections across thousands of individual devices. Each infected machine sends its harvested browser credentials to an attacker-controlled server. These credentials are then assembled into large files and distributed through dark web markets and Telegram channels. The "COMBO" label in the source name indicates this dataset draws from multiple stealer campaigns merged into a single file.

Check If Your Data Was Exposed

HEROIC operates one of the world's largest breach databases, covering more than 400 billion leaked records. Use HEROIC's free breach scanner to check if your email address or credentials appeared in the ArtHouse Cloud leak or thousands of other breaches in our database.