Katana Cloud Free Breach: 2,844 Email-Password Pairs Stolen

HEROIC found the Katana Cloud Free stealer log on April 18, 2026, exposing 2,844 records containing email addresses, plaintext passwords, and URLs.

Why the Katana Cloud Free Breach Is Dangerous

Katana Cloud Free was distributed through Telegram as a freely available stealer log, meaning the 2,844 email-and-password pairs inside it were accessible to an unlimited number of cybercriminals. Free distribution typically results in faster and more aggressive exploitation than paid logs, as thousands of threat actors can simultaneously test these credentials against major platforms without any cost barrier to entry.

What Was Exposed in the Katana Cloud Free Leak

• Email Addresses -- 2,844 login identifiers available for free to all criminal downloaders
• Plaintext Passwords -- working credentials requiring no decryption
• URLs -- login endpoints confirming which services each victim was using

Why This Katana Cloud Free Data Puts You at Risk

Freely distributed credential logs are tested against major platforms within hours of release. Because thousands of actors download them simultaneously, the credential stuffing pressure on affected accounts is many times higher than from paid-access logs. Successful logins give attackers email inbox access, which they then use to reset banking and e-commerce passwords, intercept authentication codes, and progressively take over every account linked to the exposed email address.

How Stealer Logs Work

Stealer malware is deployed through phishing emails, pirated software, and browser hijackers. After infecting a device, it extracts saved passwords and login URLs, then transmits the data to criminal infrastructure. The results are packaged into logs like Katana Cloud Free and shared openly on Telegram, where they are downloaded and immediately used for automated credential stuffing campaigns targeting hundreds of popular platforms.

Check If Your Data Was Exposed

HEROIC operates one of the world's largest breach databases, covering more than 400 billion leaked records. Use HEROIC's free breach scanner to check if your email address or credentials appeared in the Katana Cloud Free leak or thousands of other breaches in our database.