The Mix Fresh B4_Jx Leak Means Someone May Be in Your Accounts

HEROIC analysts found a combolist called "Mix Fresh B4_Jx" circulating on Telegram in April 2026. The file contains 248 records: email addresses, plaintext passwords, and the URLs those credentials unlock.

Why This Is Dangerous

Picture this: someone finds this file, picks an email address from the list, and tries the paired password against that person's email, banking, or shopping accounts. Because the password is stored as readable plaintext, there's no extra step involved, it either works or it doesn't, and attackers can test hundreds of pairs automatically in minutes.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

If any of the 248 accounts in this file used the same password anywhere else, that second account is now at risk too. This is exactly how a single, unremarkable Telegram upload can lead to real account takeover, unauthorized charges, or a locked-out inbox for the people whose information is inside it.

How Combolists Work

A combolist is a curated file of email/username and password pairs pulled together from multiple prior sources rather than a single hack. The "Mix" and "Fresh" labels in this file's name are typical seller shorthand: "Mix" signals a blend of email providers rather than one specific domain, and "Fresh" implies the credentials are recently gathered and less likely to have already been changed.

Check If You Are Affected

Run a free scan of your email address through HEROIC's breach database, which covers more than 400 billion compromised records, to see whether your account is one of the 248 in this leak.