Analysts Link the 2.6K Hotmail Combo List to 2,488 Stolen Logins

HEROIC analysts identified a combolist labeled "2.6K Hotmail Combo list Full Valid" uploaded to Telegram in July 2026. The file HEROIC analysts reviewed contains 2,488 records, each pairing an email address with a plaintext password and a URL showing which site the login was used on. The listing is associated with the United States and has been marked as a verified breach. Why This Hotmail Combolist Is Dangerous: Like other listings tagged "Full Valid," the seller is claiming that every one of these 2,488 credentials has already been tested and confirmed to work. That removes a key barrier for an attacker, who would otherwise have to guess which logins are still active. Because the passwords are stored in plaintext, they can be used immediately against Hotmail and other Microsoft-linked services without any additional effort. What Was Exposed in the 2.6K Hotmail Combolist: email addresses on the Hotmail domain, plaintext passwords with no encryption applied, and URLs identifying the login pages tied to each account. Why This Matters for the 2,488 Accounts Involved: A verified Hotmail login often opens the door to more than just email, since Microsoft accounts are commonly linked to Outlook, OneDrive, and other connected services. If any of these 2,488 passwords have been reused elsewhere, an attacker can use credential stuffing to break into banking, shopping, or social media accounts as well, increasing the risk of financial fraud and identity theft. How a Combolist Like This One Works: A combolist pairs usernames or emails with matching passwords, typically compiled from previous breaches, phishing campaigns, or malware infections before being packaged for sale or free distribution. A listing marked "full valid" generally means the uploader ran a checking tool against the login pages first, confirming which credentials still work before advertising the file, which increases both its value to buyers and its danger to the people affected. Check If You Are Affected: With 2,488 records claimed as valid, a real number of Hotmail users could have working credentials circulating right now. HEROIC's free breach scanner checks your email address against a database of more than 400 billion exposed records, including combolists like this one, so you can find out in seconds if your account was part of this leak or any other breach on file.