Credential Stuffing Risk: firstam.com Leak Hits 2,692 Logins

Credential Stuffing Risk Tied to a firstam.com Combolist Leak

Attackers are always looking for reused passwords to exploit, and a newly found combolist tied to firstam.com gives them exactly that. On June 10, 2026, HEROIC analysts identified the file on Telegram, containing 2,692 records of email addresses, plaintext passwords, and the URLs linked to each login.

Why This firstam.com-Linked Leak Is Dangerous

The passwords in this file are stored in plaintext, so no cracking is required to use them. Combined with the URLs included in each record, an attacker can test the same email and password directly against the associated site and against any other account where that password might have been reused.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs tied to each login

Why 2,692 Exposed Logins Matter

This is exactly the kind of data that fuels credential stuffing attacks. Automated tools take exposed email and password pairs and test them across countless other sites, and every successful match opens the door to account takeover, identity theft, and financial fraud.

How a Combolist Like This Gets Built

Combolists are typically assembled from credentials gathered across earlier breaches, phishing campaigns, and stealer malware logs, combined into one email:password file. Rather than requiring a fresh hack, the data may already be circulating elsewhere and is simply packaged and shared for free on Telegram.

Check Your Exposure

Given the credential stuffing risk this leak creates, it's worth checking your own exposure now. HEROIC's free breach scanner searches more than 400 billion leaked records, so you can see in seconds if your email and password appeared in this leak and update your credentials before someone else does.