The ArtHouse Cloud Logs NEW File Contains Exactly 1,958 Stolen Email and Password Pairs

In March 2026, HEROIC analysts identified a stealer log file that had been uploaded to a private Telegram channel. The file, now catalogued under the name ArtHouse Cloud Logs NEW, contained exactly 1,958 records. Each record included an email address, a plaintext password, and the URL of the service where those credentials were captured. The data was verified and added to HEROIC's breach database on May 14, 2026.

Why Plaintext Passwords Make This Stealer Log Especially Dangerous

Most data breaches expose hashed passwords, which at least require some effort to crack. This log is different. Every password in the ArtHouse Cloud Logs NEW file is in plaintext, meaning whoever downloaded it could attempt to log in to your accounts immediately, without any additional steps. Combined with the email addresses and the URLs of the targeted services, attackers have a ready-to-use list of working credentials.

That is the real danger here. There is no buffer. No hashing algorithm to slow things down. If your credentials are in this file, someone may have already tried them.

What Was Exposed in the ArtHouse Cloud Logs NEW File

• Email Addresses: Full email addresses tied to real accounts
• Plaintext Passwords: Passwords stored and exposed with no encryption or hashing
• URLs: The exact web addresses of the services where credentials were stolen

Why This Matters: Credential Stuffing and Account Takeover

Stealer logs like this one are frequently used in credential stuffing attacks. That is when an attacker takes a list of known email and password combinations and systematically tries them across dozens of popular services, such as banking apps, email providers, and e-commerce platforms. Because many people reuse passwords, a single exposed credential can unlock multiple accounts.

If your email and password from one service appear in this log, and you use the same combination elsewhere, every one of those accounts is at risk. Identity theft, financial fraud, and unauthorised access can all follow from a single stolen login.

How Stealer Log Malware Actually Works

A stealer log is the output of infostealer malware, a type of software that silently infects a computer and harvests saved credentials. The malware typically recieve its instructions from a remote server, then scans the victim's browser for saved passwords, active sessions, and stored cookies. It also captures the URLs associated with each credential, which is why this file includes website addresses alongside the emails and passwords.

Once the malware has collected this data, it packages everything into a log file and sends it back to the attacker. Those logs are then sold or shared on Telegram channels, dark web forums, and private marketplaces. The ArtHouse Cloud Logs NEW file is one such package, circulated among threat actors before HEROIC analysts intercepted and catalogued it.

Victims often have no idea their credentials were stolen. The infection can occured months before the log surfaces publicly, meaning there is a significant window where attackers have access before anyone is alerted.

Check If Your Email Appears in the ArtHouse Cloud Logs NEW Breach

HEROIC's free breach scanner searches across more than 400 billion records, including the ArtHouse Cloud Logs NEW dataset and thousands of other stealer logs, database dumps, and combolists. Enter your email address to find out whether your credentials have been exposed and which services may be at risk.

Early detection is definitly the most effective defence. If your data is in this file, changing your passwords now limits the window attackers have to exploit them.