ArtHouse Cloud Logs v1 uploaded by a Telegram User: 5,483 Exposed

HEROIC analysts have indexed a fresh stealer log file called “ArtHouse Cloud Logs v1 uploaded by a Telegram User,” which surfaced on Telegram on August 2, 2026. The file contains 5,483 records, mostly tied to victims in the United States, and includes email addresses, plaintext passwords, and the URLs those login pairs unlock. Because the passwords were stored in plaintext, anyone who downloads this file can use the credentials immediately, no cracking required.

Why This Is Dangerous

Every one of the 5,483 records in this file pairs a real email address with its matching plaintext password and the exact website it unlocks. That combination removes the guesswork attackers normally face. Instead of trying stolen passwords against random sites, an attacker can open the leaked URL directly and log in with the paired credential, often before the victim even notices anything is wrong.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to each set of credentials

Why This Matters

Because the passwords in this file are stored in plaintext and matched to specific login URLs, the risk of account takeover is immediate. If any of these 5,483 people reused their password on other services, such as banking, email, or shopping accounts, attackers can attempt credential stuffing to break into those accounts too. From there, identity theft and financial fraud become real possibilities, especially if the exposed email account is also used for password resets on other services.

How Stealer Logs Work

A stealer log is the output of infostealer malware, a type of software that quietly infects a victim's device and copies saved passwords, autofill data, and browser session details straight out of the browser. Once collected, the stolen data is packaged into a log file and often shared or sold in Telegram channels and dark web forums, exactly how the ArtHouse Cloud Logs v1 file was distributed. Because the malware captures whatever the browser had saved at the time of infection, these logs tend to include working, up-to-date passwords rather than old or expired ones.

Check If You Are Affected

If you think your credentials could be part of this leak or any other breach, HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one. Run a scan to see whether your information has been exposed, and update any passwords you may have reused across multiple sites.