The Ok Combolist Leak Means Someone May Be Using Your Passwords

What HEROIC Analysts Found in the "Ok" Telegram Combolist

In May 2025, HEROIC analysts flagged a small combolist labeled simply "Ok" being passed around on Telegram. The file held 424 records, each pairing an email address or username with a plaintext password and the web address the credentials were used on. It is a small file compared to some of the breaches HEROIC tracks, but every record inside it is a real account that someone can log into right now.

Why This Is Dangerous

Picture a stranger sitting down at your email inbox with your password already typed in. That is effectively what the "Ok" combolist hands to anyone who downloads it. Because the passwords are stored in plaintext, no decryption or cracking is required. An attacker can copy a record, plug it into a login page, and be inside your account in seconds if you have reused that password anywhere else.

What Was Exposed in the "Ok" Leak

• Email addresses and usernames
• Plaintext passwords (not hashed or encrypted)
• URLs associated with each credential pair

Why This Matters Even for a Small Leak

A file of 424 records may look minor, but scale is not what makes a leak dangerous, reuse is. If your credentials are among these 424 records and you use the same password on your email, banking, or social media accounts, one leaked password can lead to credential stuffing, account takeover, identity theft, and financial fraud across every account tied to it.

How Combolists Like "Ok" Get Made

Combolists are compiled by pulling login data from older breaches, phishing kits, and malware logs and stitching them into a single text file. There is often no single point of origin. Instead, a Telegram user gathers, cleans, and reposts data that has been circulating in different forms for months or years, then shares it as a "fresh" list to build reputation in criminal channels.

Check If You Are Affected

The only way to know if your email address is one of the 424 records in the "Ok" leak, or in any of the billions of other exposed records HEROIC tracks, is to check. HEROIC's free breach scanner searches a database of more than 400 billion leaked records so you can find out in seconds. Run a scan now, and update any password you find reused elsewhere.