How HEROIC Found 9,997 Leaked Passwords in the “eu mix” Log

How HEROIC Found the "eu mix" Stealer Log on Telegram

HEROIC's dark web monitoring team regularly scans Telegram channels where stolen data circulates, and that's exactly where analysts came across a stealer log named "eu mix," uploaded on 15-Apr-2026. Opening the file, the team found 9,997 records, each pairing an email address with a plaintext password and the URL of the site the credentials were captured from.

Why the eu mix Stealer Log Is Dangerous

Once analysts confirmed what was inside, the reason for concern was clear: each record already links a specific email and password to the exact website it unlocks, so there's no cracking or guessing involved. Because the passwords were captured and stored in plaintext, anyone who gets hold of the file can read them instantly and start using them right away.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs of the websites where the credentials were used

Why This Matters

With close to 10,000 working email and password combinations in this file, the direct risk is account takeover, since each record hands an attacker a login that already works. It also drives credential stuffing: if the same password was reused on other accounts, those are at risk too, even ones that have nothing to do with the sites named in this file.

How Stealer Logs Work

Stealer logs like "eu mix" are produced by malware that infects a device, quietly copies saved passwords and active browser sessions, and sends everything back to whoever controls the malware. The result is a plain text file listing exactly which login works on which website. Files like this one are then shared or sold on Telegram, which is exactly where HEROIC's team spotted it.

Check If You Are Affected

With nearly 10,000 records in this file, it's worth checking rather than assuming your information wasn't caught up in it. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one, and tells you immediately if you've been exposed. If you get a match, change that password right away and avoid reusing it anywhere else.