Since June 2026, 18,176 egroups.com Accounts Have Been Exposed

An 18,176-Record egroups.com Combolist Surfaces on Telegram

HEROIC analysts identified a combolist file tied to egroups.com, uploaded to a Telegram channel and dated June 10, 2026. The file contains 18,176 records, each pairing an email address with a plaintext password and a matching URL.

Why This Is Dangerous

With more than 18,000 email and password combinations in plaintext, attackers can skip the cracking step entirely and move straight to testing logins. The included URLs point directly to the site each credential pair belongs to, making it simple for anyone with the file to automate mass login attempts against real accounts.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to the accounts

Why This Matters

A list of this size is built for scale. Criminals load combolists like this into automated tools and run credential-stuffing attacks against email providers, banking sites, and online retailers, betting that a percentage of the 18,176 people in this file reused their password elsewhere. Even a small success rate on a list this large adds up to real account takeovers, financial fraud, and identity theft.

How egroups.com-Linked Combolists Are Built

A combolist is a plain-text file of "combo" entries, usually an email or username paired with a password and sometimes a login URL. Combolists tied to a specific email service or platform, like this egroups.com file, are typically assembled from older breach data, phishing campaigns, or malware infections, then organized by domain and shared on Telegram channels or dark web forums where they are easy to search and resell.

Check If You Are Affected

If you have ever used an egroups.com address or reused a password across multiple accounts, it is worth checking your exposure. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including combolists like this 18,176-record file, so you can see if your information is circulating and act before someone else does.