Brazil-Tagged KRDCLOUD Combolist Leaks 3,639 Emails and Passwords

HEROIC analysts found a combolist labeled "3778_Brazil_KRDCLOUD" uploaded to a Telegram channel on July 28, 2026. While the filename references 3,778 records, the verified file contains 3,639 entries pairing email addresses with plaintext passwords and associated URLs, tagged as tied to Brazil. Why This Is Dangerous: The passwords in this file are stored as plaintext, so anyone who downloads it can use the email and password pairs immediately. There is no encryption to break and no guesswork involved, the credentials are ready to test against other accounts right away. What Was Exposed: - Email addresses - Plaintext passwords - URLs tied to the accounts Why This Matters: Regional combolists like this one are often used to run targeted credential stuffing campaigns, since attackers can focus their efforts on services popular in a specific country. If any of these 3,639 people reused their password on a banking app, email account, or social media profile, the same credentials could unlock those accounts too, leading to account takeover, identity theft, or financial fraud. How a Combolist Like This Works: A combolist pairs usernames or emails with passwords, typically gathered from older breaches, phishing campaigns, or infected devices, then bundled and shared on Telegram or hacking forums. Some combolists are organized by country or region, as this one appears to be, which makes it easier for attackers to target services and payment platforms common in that area. Check If You Are Affected: HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, so you can quickly see whether your credentials appeared in this combolist or any other exposure.