If You Reuse Passwords, KATANA_CLOUD FREE’s 13,145 Leak Should Worry

KATANA_CLOUD FREE Stealer Log Exposes 13,145 Records

HEROIC analysts found a stealer log file labeled "KATANA_CLOUD FREE" uploaded by a Telegram user on August 20, 2024. The file contained 13,145 records, each pairing an email address with a plaintext password and the URL of the login page it belongs to. If you have ever reused a password across multiple accounts, this is exactly the kind of leak that should concern you.

Why This Is Dangerous

These passwords were exposed in plaintext, meaning there is no encryption or hashing standing between an attacker and your account. Anyone who gets hold of this file can take the matching email, password, and URL and log in directly, with no cracking or guessing needed.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the associated login pages

Why This Matters

If you reuse the same password across different sites, a leak like this one puts every one of those accounts at risk. Attackers use lists like this for credential stuffing, automatically testing each stolen email and password combination against banking, email, and shopping sites. The result can be account takeover, identity theft, or direct financial fraud.

How Stealer Logs Work

A stealer log comes from infostealer malware that infects a device through a malicious download, cracked software, or a phishing link. Once running, it quietly collects saved browser passwords, autofill data, and session details, then bundles everything into a log file. These files are commonly shared or sold on Telegram channels shortly after collection, which is exactly how this dataset became public.

Check If You Are Affected

Not sure if your credentials are part of this leak? HEROIC's free breach scanner checks your email against a database of more than 400 billion exposed records. Run a free scan today and stop reusing passwords across your accounts.