Breach Intelligence Report 23 May 2026

31,364 Records Leaked From ArtHouse Cloud Logs v2 Stealer Dump

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs ArtHouse Cloud Logs v2 uploaded by a Telegram User
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Records Exposed 31,364
Source Type Stealer log
Origin United States
Password Type plaintext

On May 14, 2026, a Telegram user uploaded a fresh stealer log dump labeled "ArtHouse Cloud Logs v2," and inside it sat 31,364 individual records of email addresses, plaintext passwords, and the URLs those credentials unlock. That's not a hypothetical number. It's a real file, sitting in a channel that anyone with a Telegram account could find.


Why This Is Dangerous

Stealer logs are different from most breach dumps you hear about. They don't come from a single hacked company's database. They come directly off infected computers, meaning the passwords inside were captured at the moment someone typed them in or had them saved in a browser. That makes the data fresher and, in a strange way, more dangerous, because it often reflects passwords people are actively using today rather than ones they changed years ago.


What Was Exposed

  • Email addresses tied to real user accounts
  • Plaintext passwords, meaning no encryption stood between the password and whoever opened the file
  • The specific URLs where each login was used, basically a map of which site each password unlocks

Why This Matters

When a password is paired with both an email and the exact site it belongs to, criminals don't have to guess where to try it. They can log straight into that account. And because so many people still reuse the same password on multiple sites, one leaked combination can open several doors at once, not just the one it came from.


How Stealer Logs Work

This type of leak usually starts with malware quietly installed on a victim's device, often bundled inside a cracked program or a fake download. Once running, it scans the browser's saved password vault and autofill data, then packages everything it finds into a text file before sending it back to whoever controls the malware, who might recieve dozens of these files a day. That file is what eventually gets sold or, in this case, handed out for free on Telegram.


Check If You Are Affected

You don't have to wonder whether your information is floating around in a file like this one. HEROIC's free scanner searches across more than 400 billion leaked records, including stealer logs like this, and will tell you imediately if your email shows up. Given how often these files circulate before anyone notices, it's worth checking now rather than assuming you're in the clear.

Breach Breakdown

Domain ArtHouse Cloud Logs v2 uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 23 May 2026
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Private & Secure No Account Needed 2,744 scanned today
Breach Rank #6,785 by affected users
Impact Score
1
sensitivity + scale + recency
Est. Financial Impact $227.0K fraud, phishing & misuse risk
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Identity Theft Risk Score

Risk Score: 8.7/10 - Critical

Data Exposure Analysis

Passwords Critical
Financial High
Personal Medium
Social High
Security Critical

Breach Timeline Analysis

March 2024 Multiple credentials exposed in recent data breach
January 2024 Password found in dark web marketplace
December 2023 Personal information leaked in major security incident

Security Recommendations

High Priority
Password Security

Critical: Change compromised passwords immediately and enable 2FA on all accounts

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