Casper Cloud Free Leak: 21,674 Passwords Exposed. Are You Next?

HEROIC analysts identified a stealer log file titled "Casper Cloud Free" that was uploaded to a public Telegram channel on July 20, 2026. The file contains 21,674 records pulled directly from infected devices, including email addresses, plaintext passwords, and the URLs of the websites those credentials unlock.

Why This Is Dangerous

Unlike a typical database leak, this file did not come from a hacked company. It came from malware running quietly on victims' own computers, recording every login as it was typed or auto filled. That means the passwords in this file are current, working, plaintext credentials paired with the exact site each one belongs to. An attacker does not need to guess or crack anything. They can simply copy the email, password, and URL into a browser and log straight into the account.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the accounts and services those passwords unlock

Why This Matters

Because each password in this file is linked to a specific URL, criminals can move fast. They test the credentials on the listed site first, then try the same email and password combination on banking, email, and social media platforms, a technique known as credential stuffing. If a victim reused this password anywhere else, one stolen login can turn into a full account takeover, financial fraud, or identity theft in a matter of minutes.

How This Stealer Log Was Created

Stealer logs like this one come from infostealer malware, malicious software that infects a device through a fake download, cracked software, or a phishing link. Once installed, it silently scans the browser's saved passwords, autofill data, and active sessions, then packages everything into a file and sends it back to the attacker. That file is then sold or, as in this case, given away for free on Telegram, where anyone can download it and start using the credentials inside.

Check If You Are Affected

If you think one of your accounts could be sitting inside a file like this, do not wait to find out the hard way. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including stealer logs like Casper Cloud Free, so you can see what has been exposed and change any affected passwords before someone else uses them.