The 540 x Fresh Valid UHQ MIX Dump Has Exactly 539 Logins

On July 18, 2026, HEROIC's analysts identified a combolist advertised as 540 x Fresh Valid UHQ MIX, uploaded to Telegram and marketed as recently verified, high-quality credentials. Despite the "540" in its name, the file HEROIC reviewed contains 539 records, each pairing an email address with a plaintext password and the URL the credential was used on.

Why the 540 x Fresh Valid UHQ MIX Leak Is Dangerous

Sellers label lists "fresh" and "valid" specifically because the credentials have been tested and confirmed to still work, meaning this is not a stale collection of long-changed passwords. Every entry in this plaintext file is paired with its exact login URL, so a buyer can start attempting account access the moment they receive the file.

What the 540 x Fresh Valid UHQ MIX File Contains

• Email addresses
• Plaintext passwords
• URLs of the websites each credential unlocks

Why This Leak Matters to You

Because this combolist is marketed as pre-verified, or "valid," every record in it carries a higher chance of still working than in a random, unchecked dump. That makes the 539 accounts in this file immediate targets for credential stuffing, with a real risk of account takeover, financial fraud, or identity theft for anyone whose login is included.

How the 540 x Fresh Valid UHQ MIX Combolist Was Assembled

"UHQ," short for ultra high quality, is a term sellers use to market combolists they claim have been manually checked or filtered to remove dead logins before resale. Lists like this one are typically compiled from a mix of recent phishing campaigns, malware logs, and other stolen data, then tested and repackaged for buyers willing to pay for higher success rates.

Check If You Are in the 540 x Fresh Valid UHQ MIX Leak

Run a free scan with HEROIC to check your email against 540 x Fresh Valid UHQ MIX and the rest of our database of more than 400 billion leaked records. If your credentials appear, change that password now and enable two-factor authentication wherever it's available.