File #1026 Combolist Leak Exposes 946,469 US Login Accounts

In July 2024, HEROIC's threat intelligence analysts identified a combolist file, cataloged as File #1026 from the "1106.Url_Login_Password" collection, being shared by a Telegram user. The file contained 946,469 records pairing email addresses with plaintext passwords and the exact web address, or URL, each credential belongs to. Records in this batch are associated with the United States.

Why the File #1026 Leak Is Dangerous

Every password in this combolist is stored in plaintext, which means there is no encryption standing between the data and anyone who opens the file. A person does not need hacking skills to use it: they simply load the list into free automated software and let it try each email and password pair against banking sites, email providers, and online stores. If your password shows up here and you have used it anywhere else, that other account is now just as exposed as the one this list came from.

What the File #1026 Combolist Contains

• Email addresses
• Plaintext passwords
• URLs of the websites each credential unlocks

Why This Leak Matters to You

Combolists like this one are the raw fuel for credential stuffing attacks, where criminals run millions of stolen logins through banking portals, streaming services, and email accounts in a matter of minutes. Because this file already pairs each password with the URL it was used on, attackers skip the guesswork entirely. The real damage rarely stops at one account: a compromised email inbox can be used to reset passwords on other services, opening the door to financial fraud and identity theft.

How the File #1026 Combolist Was Assembled

A combolist is typically stitched together from older breaches, phishing pages, and malware logs, then repackaged and labeled for easy distribution on platforms like Telegram. The "1106.Url_Login_Password" naming convention suggests this file is one entry in a larger, numbered series being distributed as a batch, meaning the same uploader likely released hundreds of similar files containing millions of additional credentials.

Check If Your Email Is in the File #1026 Leak

You do not need to track down this file yourself to find out if you are affected. HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, including combolists like File #1026 that circulate on Telegram. Run a free scan now, and if your information turns up, change that password immediately everywhere you have reused it and turn on two-factor authentication.