1,877 Plaintext Logins Surface in the ArtHouse Cloud Logs File

HEROIC analysts found a stealer log called ArtHouse Cloud Logs, uploaded to Telegram on August 27, 2026, with 1,877 records of email addresses, plaintext passwords, and the URLs each login was captured from. If you have ever logged into an account from a device that later turned out to be infected, this is the kind of file your credentials could end up in. The only way to know for certain is to scan your email.

Why This File Is an Easy Win for Attackers

This file is dangerous because the passwords were captured straight from an infected device, in plain text, with the exact site URL attached. There is no cracking involved, an attacker just opens the URL and tries the matching password. Anyone who reused that password somewhere else is also exposed on every site where it was reused.

What Showed Up in the ArtHouse Cloud Logs File

• Email Addresses: identifies the account owner and enables targeted phishing.
• Plaintext Password: ready to use immediately, no cracking required.
• URLs: tells an attacker exactly which site or service each login opens.

What You Risk if Your Login Is Inside

If your email shows up here, the immediate risk is someone logging into that exact account using the password and URL on file. The secondary risk is bigger: if you reused that password anywhere else, every one of those accounts is just as exposed. Because the file is small, the people in it are easier to target individually rather than lost in a mass list.

How Stealer Logs End Up on Telegram

Stealer logs come from malware that sits quietly on an infected device, reading saved browser passwords and autofill fields before sending them to whoever controls it. Once collected, the data gets organized into a file like this one and shared on Telegram channels. According to HEROIC analysts, channel names attached to these files are usually just labels for whoever is distributing them, not the name of a company.

Ready to Check Your Own Email?

Run a free scan your email check against this file and HEROIC's broader database to see if you are listed. If you are, update the password shown immediately, and change it anywhere else you may have reused it. Check any inbox you use, personal or work, since stealer logs often catch both.