The MALTA CORP-OTHERS-PRO MAILS TEST SAMPLE Leak Puts 1,043 Inboxes at Risk

HEROIC analysts found a combolist uploaded to Telegram in February 2026, internally labeled "MALTA CORP-OTHERS-PRO MAILS TEST SAMPLE." The file contained 1,043 records, each pairing an email address with a plaintext password and a matching login URL.

Why This Is Dangerous

Picture someone opening this file, scrolling through 1,043 rows of email addresses and passwords, and simply trying each one against the login page listed next to it. That is the entire attack. No hacking skill needed, no cracking software, just patience and a list. If your credentials are in a file like this, someone could be logging into your accounts right now without you knowing.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Lists like this one are built for credential stuffing, where an attacker automates the process of testing stolen logins across many different websites at once. If you reused a password from one of these 1,043 accounts anywhere else, that other account is now at risk too, whether it holds your email, your banking information, or your social media presence — the classic path to account takeover, identity theft, and financial fraud.

How Combolists Work

A combolist is a compiled file of email or username and password pairs, usually gathered from previous breaches, phishing attacks, or malware infections and organized before being sold or shared. The label attached to this one, referencing corporate email addresses gathered for testing purposes, suggests it was assembled and filtered specifically before being uploaded to Telegram.

Check If You Are Affected

If you think your email or a coworker's might be part of this list, check now rather than waiting. HEROIC's free breach scanner searches more than 400 billion leaked records to show you what has been exposed. Run a scan and reset any password that looks familiar.