Is Your Email in the ArtHouse Cloud Logs v3 Stealer Leak?

HEROIC analysts identified a stealer log dated 31 Jul 2026 called ArtHouse Cloud Logs v3, uploaded to a Telegram channel by an individual user. The file holds 10,361 records, each combining an email address, a plaintext password, and the URL of the site the credentials were taken from.

Why the ArtHouse Cloud Logs v3 Leak Puts You at Risk

If your email shows up in this file, the danger is immediate, not theoretical. The passwords are stored in plaintext, so anyone with the file can read them and log in right away. With the matching URL included, an attacker knows exactly which site or service to target with your stolen credentials.

What Was Exposed in ArtHouse Cloud Logs v3

• Email addresses
• Plaintext passwords
• URLs of the sites tied to each stolen login

Why the ArtHouse Cloud Logs v3 Leak Matters to You

If you have ever reused a password across more than one account, a leak like this can reach further than the original site it names. Attackers take leaked email and password pairs and try them everywhere else through credential stuffing, which is how one exposed login can lead to account takeover, identity theft, or fraudulent charges on accounts that were never directly breached.

How Stealer Logs Like ArtHouse Cloud Logs v3 Are Built

This kind of file is produced by malware running secretly on an infected device, scanning saved browser data for usernames, passwords, and the URLs tied to them. The stolen information is sent back to whoever controls the malware, packaged into a batch like this one, and then sold or shared for free in Telegram groups dedicated to trading stolen credentials.

Check If You Are Affected by ArtHouse Cloud Logs v3

You do not have to guess whether your email is part of this 10,361-record leak. HEROIC's free breach scanner checks it against more than 400 billion leaked records, including stealer logs like this one, so you can find out in seconds and secure any account that turns up exposed.