2.5 Million Logins Leaked in 3KK USA UHQ Base Stealer Dump

On February 24, 2023, a Telegram user uploaded a stealer log file labeled "3KK USA UHQ Base LLOKK," exposing 2,525,552 records of stolen login data tied to United States-based accounts. The file contained email addresses, plaintext passwords, and the URLs of the websites those credentials were used on, harvested from malware-infected devices rather than pulled from a single company's servers.

Why a Log This Large Is Dangerous

This is not a typical corporate data breach. It's a stealer log, a raw dump of credentials copied straight from infected computers by malware. That distinction matters because the passwords inside were captured in plaintext, exactly as the victims typed them. There's no encryption to break and no hash to crack. Anyone who downloads this file can start testing the logins immediately, and at 2.5 million records, this is one of the larger stealer dumps to surface on Telegram.

What Was Exposed

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

Why This Matters

Over 2.5 million working username-and-password pairs are now circulating on Telegram, more records than most people will ever see in a single leak. Because so many people reuse passwords across sites, attackers routinely take logins from a leak of this size and try them against email, banking, and social media accounts elsewhere, a tactic known as credential stuffing. When it works, it leads to account takeover, identity theft, and financial fraud, often before the victim realizes anything was taken.

How the "3KK USA UHQ Base" Log Was Built

Stealer malware typically arrives disguised as cracked software, a fake browser update, or a malicious attachment. Once it's running on a device, it quietly scans the browser for saved passwords, autofill entries, and the web addresses tied to them, then packages everything into a single file and sends it back to whoever controls the malware. Individual logs like these get combined into larger "bases," exactly what happened here, where 2,525,552 records from countless infected devices were merged into one file and shared on Telegram.

Check If You Are Affected

With a leak of this scale, the safest move is to check your own exposure directly. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including stealer logs like this one, and tells you instantly if your email address has turned up in a breach. If you find a match, change the password on the affected account right away, avoid reusing it anywhere else, and turn on multi-factor authentication wherever it's offered.