How a Telegram Combolist Led to 1,557 Stolen OK Login Pairs

What HEROIC Analysts Found in This OK Combolist

On June 14, 2025, HEROIC analysts identified a combolist labeled "OK" after it was uploaded to a Telegram channel by an individual user. The file contains 1,557 records pairing email addresses with plaintext passwords, along with the URLs of the login pages those credentials belong to. The affected accounts are tied primarily to the United States.

Why This Is Dangerous

Because the passwords in this file are stored in plaintext, anyone who downloads it can read and use the credentials immediately, with no cracking or guesswork involved. Combined with the matching email address and login URL, an attacker has a complete shortcut into 1,557 separate accounts.

What Was Exposed in This Combolist

• Email addresses
• Plaintext passwords
• URLs identifying the associated login pages

Why This Matters

A leak of 1,557 credentials is more than enough to power an automated credential stuffing campaign, where attackers test each email and password pair against banking sites, email providers, and social media platforms. Anyone in this file who reused their password elsewhere is at risk of account takeover, unauthorized purchases, and identity theft, since one working credential can unlock several unrelated accounts.

How This Combolist Led to 1,557 Stolen Logins

Combolists like this one are typically built by pulling email and password pairs from older breaches, phishing pages, or malware infected devices and combining them into a single file. That file is then uploaded to a Telegram channel, where anyone can download it and start testing the credentials within minutes, no technical skill required.

Check If You Are Affected

If you want to know whether your email address appears in this leak or another one, HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records. Run a scan today and update any passwords you may have reused across accounts.