Inside the Ok Uploaded by a Telegram User Combolist: 645 Stolen Logins

Inside the Combolist That Exposed 645 Stolen Logins

HEROIC analysts reviewed a combolist file uploaded to Telegram in July 2025 containing 645 records of email addresses, plaintext passwords, and associated URLs. The file, labeled "Ok uploaded by a Telegram User," is tied primarily to accounts in the United States.

Why This Is Dangerous

Every password in this combolist is stored in plaintext, so anyone who gets hold of the file can read and use the credentials right away, with nothing to crack or decode. Paired with the listed URLs, an attacker knows exactly which site each login unlocks before they even attempt to use it.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated website URLs

Why This Matters

Combolists like this one are the building blocks of credential stuffing attacks, where the same email and password are tried automatically across many different websites. Since a lot of people reuse passwords, this small file of 645 records could still lead to account takeover, financial fraud, or identity theft for the people whose data it contains.

How a Combolist Like This One Gets Built

A combolist is simply a text file that lines up usernames or email addresses next to passwords. Rather than coming from one big company hack, most combolists are stitched together from smaller sources: old breaches, phishing kits, and malware that pulls saved logins out of a victim's browser. Once compiled, they are traded and reposted on Telegram, often stripped of any context about where the data originally came from.

Check If You Are Affected

If you want to check whether your email or a reused password is part of this leak, HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records, including combolists like this one. Run a free scan and change any password you have used on more than one site.