HEROIC Analysts Found MX Stealer Log in Private Telegram Channels

HEROIC analysts identified this stealer log on 18-Jun-2026. The breach exposed 11 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as MX Stealer Log.

Why This Is Dangerous

The MX Stealer Log was distributed through private Telegram channels before being discovered by HEROIC analysts. Plaintext passwords in this file mean attackers can attempt logins immediately, without any technical barrier to using the stolen data.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

When stolen credentials are shared in private Telegram channels, they reach a large audience of cybercriminals quickly. Each stolen email and password pair can be used in account takeover attempts across banking, email, and social media platforms, especially if the victim reuses that password elsewhere.

How Stealer Logs Work

Stealer logs originate from malware that silently runs on an infected device. The malware collects stored passwords, browser session tokens, and login credentials, then transmits the data to a remote server controlled by the attacker. The resulting log files are sold or shared in underground markets and Telegram groups.

Check If You Are Affected

HEROIC offers a free breach scanner that searches 400 billion records. Search your email address now to see if your credentials appear here or elsewhere. Free, takes seconds.