MailAccessCombos_1 Leak Exposed 5,369 Email and Password Pairs.

HEROIC analysts identified a combolist labeled MailAccessCombos_1 that was uploaded to a Telegram channel on August 1, 2026. The file contains 5,369 records pairing email addresses or usernames with plaintext passwords, along with URLs linking each credential set back to the site it was taken from.

Why This Is Dangerous

The name of this file suggests it was built specifically to target email account access, and the passwords inside are stored in plaintext with no encryption to break. Anyone who downloads the file can immediately try each email and password pair against the URLs included, which point directly to the login pages where the credentials were captured.

What Was Exposed

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

Why This Matters

Email accounts are often the key to resetting passwords on banking, shopping, and social media accounts, which makes a combolist like this one especially useful to attackers running credential stuffing campaigns. With 5,369 records to work through, criminals can automate the process of testing each pair across dozens of other services in a short amount of time.

How Combolist Attacks Work

A combolist bundles usernames or email addresses with matching passwords, usually gathered from earlier breaches, phishing campaigns, or malware infections and then compiled into one file for resale or free distribution. Because the data requires no decryption, a file like MailAccessCombos_1 can be put to use within minutes of appearing on Telegram or a dark web forum.

Check If You Are Affected

If you think your email address or password might be among these 5,369 records, it is worth checking now. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, so you can quickly find out if your information was exposed and take steps to protect your accounts.