MAIL ACCESS MIX VALID 100: Your Passwords May Already Be Stolen

MAIL ACCESS MIX VALID 100: What HEROIC Analysts Found

In June 2026, HEROIC analysts identified a stealer log file called "MAIL ACCESS MIX VALID 100" after it was uploaded to a Telegram channel on 08-Jun-2026. The file contains 2,115 records, each pairing an email address with a plaintext password and the URL of the login page the credentials were captured from. Unlike a typical database leak, this data was pulled directly from infected computers, meaning every entry represents a real account someone logged into recently.

Why This Is Dangerous

Because the passwords in this log are stored in plaintext, anyone who gets hold of the file can use the email, password, and URL together immediately, no cracking or guessing required. An attacker can open the listed website, enter the exact credentials, and log in as the victim within seconds. If that password is reused anywhere else, the attacker can try it on email providers, banking portals, and social media accounts too.

What Was Exposed

• Email addresses
• Plaintext passwords (stored and shared with no encryption)
• URLs showing exactly which site or service each login belongs to

Why This Matters

Even a small batch of 2,115 credential pairs is enough to cause real damage. Criminals run these lists through automated tools that test the same email and password combination across hundreds of other websites, a technique known as credential stuffing. When it works, it leads to account takeover, unauthorized purchases, drained loyalty points, or a hijacked inbox that gets used to reset passwords on even more accounts. For anyone in this file, the risk of identity theft and financial fraud starts the moment the log was uploaded.

How Stealer Logs Work

A stealer log is the output of information-stealing malware that infects a victim's device, often through a fake download, cracked software, or a malicious email attachment. Once installed, the malware quietly harvests saved passwords, autofill data, and browser session details, then packages everything into a text file and sends it back to the attacker. These logs are frequently sold or shared for free in Telegram channels like the one this file came from, which is why fresh stealer logs surface online on a near-daily basis.

Check If You Are Affected

You don't have to guess whether your email address showed up in this stealer log or any of the thousands of others HEROIC tracks. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one, and tells you exactly what was exposed. Run a free scan today to find out if your credentials need to be changed.