The HOTMAIL_1 Combolist Quietly Surfaced With 1,119 Login Pairs

HEROIC analysts spotted a combolist called HOTMAIL_1 that surfaced on Telegram on November 3, 2024. It is a small file by breach standards, just 1,119 records, but each one pairs an email address with a plaintext password and the URL that login works on. It didn't make headlines. It just appeared quietly in a Telegram channel where files like this get traded routinely. Why This Is Dangerous: Small does not mean harmless. Each of these 1,119 records is a complete, ready-to-use login. An attacker does not need to crack anything or guess a password, the file hands over the email, the password, and the site it opens, all in one line. What Was Exposed: - Email addresses - Plaintext passwords - URLs matched to each login Why This Matters: A file this size is exactly the kind of thing that gets fed into automated credential stuffing tools, where criminals test stolen logins against dozens of other sites in bulk. If any password in this list has been reused, that single reused password can unlock email, banking, or shopping accounts and open the door to identity theft or financial fraud. How a Combolist Like This Works: Combolists are collections of stolen or leaked username and password pairs, usually pulled from older breaches or malware infections and organized by the site each credential belongs to. Small combolists like HOTMAIL_1 often circulate for free or cheap on Telegram, precisely because they are easy to produce and easy to plug into automated login tools. Check If You Are Affected: You can check whether your information appears in the HOTMAIL_1 leak, or any of the more than 400 billion records in HEROIC's breach database, with a free scan. It takes seconds to find out if your email and password showed up in this file.