Our Analysts Found the CASPER CLOUD FREE Dump in Private Telegram Channels

In December 2025, HEROIC analysts found a stealer log file circulating in a private Telegram channel under the name "CASPER CLOUD FREE." The file contained 19,108 records harvested from compromised devices, with each entry including an email address, a plaintext password, and the URL of the site where those credentials were captured. The upload was dated December 31, 2025, suggesting the data was packaged and distributed as a free sample or promotional release -- a common tactic used by stealer log operators to build reputation in underground communities.

Why a Free Telegram Release Is More Dangerous Than You Think

When threat actors upload stealer logs for free, the data spreads faster and more widely than paid listings. Files labeled "free" get shared, forwarded, and reposted across dozens of channels and forums within hours. That means more criminals have access to these 19,108 accounts than would ever see a paid listing. Each one of those email-password-URL combinations represents a real person whose credentials were actively being used when the malware captured them. The fact that the data is free does not make it less accurate -- it makes it more widely distributed.

What the CASPER CLOUD FREE Telegram Upload Exposed

• Email addresses (account login identifiers)
• Plaintext passwords (completely unencrypted, immediately usable)
• URLs (the specific login pages where credentials were intercepted)

This tripled combination -- email, password, and URL -- is the most operationaly useful data format for credential stuffing attacks and account takeovers.

Why the CASPER CLOUD FREE Leak Creates Lasting Risk

Even though this file contains fewer records than some larger dumps, the risk to individuals is identical. Once credentials appear in a Telegram-distributed stealer log, they enter a permanent circulation cycle. Combolist aggregators scrape these files and merge them into larger databases. Credential stuffing bots test them against hundreds of popular services. People who used the same password on multiple accounts face the possibility of losing access to email, banking, social media, and shopping accounts -- often all at once. The file being labeled "free" means the damage window is wider and starts sooner.

How CASPER CLOUD-Style Stealer Logs Are Built and Distributed

The CASPER CLOUD FREE file follows the standard stealer log model. Information stealer malware -- typically deployed through cracked software, fake browser plugins, or phishing emails -- infects a victims device without any visible sign. The malware then runs in the background, collecting saved passwords, monitoring login forms, and recording the URLs where credentials are entered. All of this data is compiled into a structured log and sent to the attacker. Operators then sort and bundle these logs by volume or category and release them on Telegram, sometimes as paid products and sometimes -- as with CASPER CLOUD FREE -- as free samples intended to demonstrat the quality of the data and attract buyers for larger packages.

Check If Your Email Was in the CASPER CLOUD FREE Upload

HEROIC's breach intelligence database contains over 400 billion records from thousands of stealer logs, database dumps, and combolists, including the CASPER CLOUD FREE Telegram release. Our free scanner lets you search your email address in seconds to see whether your credentials have appeared in this or any other known breach. Visit heroic.com to run a free check and find out if your passwords need to be changed right now.