ArtHouse Cloud Leak Exposes 130,827 Records, Risk of Takeover

HEROIC analysts discovered a large stealer log dump on June 17, 2026, uploaded to a Telegram channel under the name "ArtHouse Cloud Logs new v2." The file held 130,827 records, making it one of the bigger stealer log drops HEROIC has catalogued this month, and it included email addresses, plaintext passwords, and the login URLs tied to each account.

What Happens Next After the ArtHouse Cloud Leak

The real danger of a leak this size isn't the moment it's discovered, it's what follows. With 130,827 sets of working credentials in circulation, automated bots can begin testing those emails and passwords against banking sites, retailers, and email providers within hours. Because the passwords are stored in plaintext, there's no encryption standing between the data and an attacker's login attempt.

Every matched URL tells criminals exactly where to point their tools, turning this leak into a ready made attack list rather then a random pile of stolen information.

What Was Exposed in the ArtHouse Cloud Leak

• Email addresses
• Plaintext passwords
• Associated login URLs

All 130,827 records were verified by HEROIC's research team before being logged in our breach intelligence database.

The Consequences of the ArtHouse Cloud Breach

Password reuse is what turns one leak into many. If a password from this file matches one you use elsewhere, an attacker can walk through the front door using credential stuffing, no hacking skill required. From there, the usual chain follows: account takeover, identity theft, and in many cases direct financial fraud once banking or payment logins are involved.

The scale here means the consequences aren't limited to a handful of people. Over one hundred thousand individuals now carry real exposure until they act.

How Stealer Log Malware Works

Stealer log malware infects a device quietly, often bundled inside cracked software, fake game cheats, or malicious browser extensions. Once running, it harvests saved passwords, autofill fields, and browser cookies directly from the infected machine, then compresses everything into a single exportable file.

That file is what eventually surfaces on Telegram or dark web marketplaces, sometimes sold, sometimes given away to build a seller's reputation. The ArtHouse Cloud file followed this exact path, moving from an infected device straight to public distribution with no warning to the people affected.

Check If You Were Affected by the ArtHouse Cloud Leak

With over 130,000 records involved, the odds of being caught up in this leak are higher then usual. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including this ArtHouse Cloud log, in seconds.

If your information appears, change that password immediately and enable two-factor authentication everywhere it's available. Acting now is the difference between a close call and a real loss.