8,498 Plaintext Passwords From the CLOUDHEAVENLOGS Dump Are Live on the Dark Web

In May 2023, HEROIC analysts identified a stealer log file uploaded to Telegram under the label "MAY - 450PCS CLOUDHEAVENLOGS." The dump exposed 8,498 records belonging to users in the United States, each containing an email address, a plaintext password, and the URL of the site where that credential was actively in use. The structured naming convention of this upload, combining a month, a piece count, and the operator name CLOUDHEAVENLOGS, points to an organized operation distributing stolen credentials in bulk across private Telegram channels.

Why This Is Dangerous

Stealer log files do not become harmless once they are uploaded. This data was first distributed in May 2023, but the credentials inside remain valid for any account where the password has not been changed. Attackers who download or purchase these logs can attempt logins today, years after the original theft occured. Because the passwords in this file are stored in plaintext, no cracking tools or technical knowledge are required to use them. The CLOUDHEAVENLOGS operator is associated with a pattern of large-volume log distribution, meaning this data has likely been resold and shared multiple times since it was first uploaded. Each transaction puts the 8,498 records in front of a new set of potential attackers.

What Was Exposed

• Email Addresses: Active email accounts used as login identifiers across dozens of platforms
• Plaintext Passwords: Unencrypted passwords captured directly from infected devices, ready for immediate use
• URLs: The specific websites and services associated with each stolen credential set

Why This Matters

When 8,498 sets of working email and password combinations are combined with site-specific URLs, attackers have a precise map of each victim's online presence. Automated credential stuffing tools can test these logins across banking portals, email providers, and corporate systems within hours of aquiring the file. A single compromised email account can cascade into full identity theft. Attackers use email access to trigger password resets on every linked service, from online banking to social media to workplace platforms. Seperate accounts that share the same password are equally at risk, even if those sites were not listed in the original stealer log. Financial fraud is a direct concern whenever credentials for payment platforms or financial services are exposed. Because this data was circulated in private Telegram channels, many of the 8,498 affected individuals have likely never been notified that their credentials were compromised.

How Stealer Log Malware Works

A CLOUDHEAVENLOGS-type stealer log begins not on a server, but on the victim's own device. Infostealer malware infects a computer through a compromised software download, a phishing link, a fake browser extension, or a malicious email attachment. Once installed, the malware runs silently in the background. It scans the browser's local credential storage, extracting every saved password, active session cookie, and autofill entry it can find. It also records the URLs associated with each credential so attackers know exactly which services to target. All of this data is then packaged into a structured log file and transmitted to an attacker-controlled server or Telegram channel. The victim's device continues to function normally throughout this process. Most people never recieve any warning that anything has happened.

Check If You Are Affected

HEROIC maintains one of the world's largest breach intelligence databases, with over 400 billion records indexed from thousands of data breaches, stealer logs, and dark web sources. The CLOUDHEAVENLOGS dump and thousands of similar Telegram uploads are included in that database. Use HEROIC's free breach scanner to search your email address right now. If your credentials appeared in the "MAY - 450PCS CLOUDHEAVENLOGS" upload or any related dump, you will see exactly what was exposed and when. Knowing your exposure is the first and most important step toward protecting your accounts.