Your Passwords May Be Exposed in the TOR_LOG MIX 398PCS Leak

HEROIC analysts identified a stealer log dump titled TOR_LOG MIX 398PCS that surfaced on a Telegram channel in January 2024. The file contained 6,667 individual records, each pairing an email address with a plaintext password and the website URL where that password was used. Unlike a typical corporate breach, this data was not stolen from one company. It was harvested directly from infected computers.

Why This Stealer Log Is Dangerous

What makes this leak especially concerning is that the passwords were stored in plaintext, meaning no encryption stood between the attacker and the raw login credentials. Because the log also includes the exact URL tied to each password, criminals do not have to guess where a credential works. They can log in directly, often before a victim even realizes their machine was compromised.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the exact login pages tied to each password)

Why This Matters for Your Accounts

Stealer log data is a goldmine for credential stuffing attacks. Because so many people reuse the same password across multiple sites, a single leaked login can quickly lead to account takeover on email, banking, or shopping accounts. From there, attackers can attempt identity theft or outright financial fraud, draining funds or opening new lines of credit in a victim's name. These incidents rarely stay seperate from one another. Once one account falls, others tend to follow.

How Stealer Log Malware Actually Works

Stealer logs are generated by a category of malware designed to quietly infect a device and recieve saved credentials straight from the browser, apps, and system memory. The malware scans for stored logins, autofill data, and session cookies, then packages everything into a single file. That file, like the one behind this incident, is then sold or leaked on underground forums and Telegram channels where other criminals can act on it.

Because the malware runs silently in the background, victims often have no idea their device was ever infected. The first sign of trouble usually occurs when strange account activity starts appearing.

Check If You Are Affected

You do not need to guess whether your information was part of this leak. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including this one, to show you instantly if your email or password has been exposed. Taking a minute to check now is far easier than dealing with a hijacked account later.