36K Valid Mix Leak: 35,659 US Accounts Exposed Online

In late May 2026, HEROIC threat intelligence analysts identified a large stealer log file uploaded to Telegram under the name "36K Valid Mix," containing 35,659 records tied to US accounts. The "Valid" in the name signals that the credentials are marketed as checked and working. The file includes email addresses, plaintext passwords, and the URLs of the login pages tied to each one.

Why a "Valid Mix" of 35,659 Accounts Is a Bigger Threat Than a Random Dump

The word "mix" tells you these credentials were pulled from many different websites and services rather than a single breached company. Combined with "valid," meaning the accounts have reportedly been tested and confirmed to work, this file represents a large, ready-to-use set of working logins spanning whatever accounts each infected device had saved.

What Was Exposed in the 36K Valid Mix File

• Email addresses
• Plaintext passwords
• URLs of the login pages tied to each credential

Why This Matters for 35,659 People Across Multiple Services

Because the passwords are stored in plain, readable text and are advertised as already verified, attackers can log in immediately without cracking anything. Since this is a mixed batch spanning many different sites, the same person could have multiple accounts exposed if they reused a password. At this scale, criminals typically automate credential stuffing across email providers, banks, and shopping sites, which can quickly lead to account takeover, financial fraud, and identity theft.

How Criminals Build and Verify "Mix" Files Like This One

Stealer malware harvests whatever usernames, passwords, and login URLs are saved on an infected device, regardless of which websites they belong to. Sellers then combine the output from many infected machines into one large "mix" file and run automated tools to check which credentials still log in successfully, keeping only the "valid" ones. This 35,659-record file appears to be exactly that kind of curated, pre-checked batch, built for buyers who want working accounts rather than a raw, untested dump.

Check If Your Login Is in This Verified Mix

Given how many services could be represented in a mixed batch this large, it's worth checking your exposure directly. HEROIC's free breach scanner searches more than 400 billion leaked records, including stealer logs and combo lists like this one, so you can find out if your email was included and change any affected passwords right away.