LeakBase 8.9Kk ULP: 1.1M Plaintext Passwords Surfaced 7 Months Later

HEROIC analysts identified a stealer log named "8.9Kk ULP" circulating on a well-known hacking forum on May 28, 2024, posted by a user going by "firegoon." The file contained close to 9 million lines of stolen data, which narrowed down to 1,122,543 unique records once duplicates were removed. Each record paired an email address with a plaintext password and the homepage URL where that login was used.

Why the LeakBase 8.9Kk ULP Log Is Dangerous

Unlike a hacked database full of encrypted or hashed passwords, this log holds plaintext logins pulled directly from infected devices. That means there is no cracking or guessing involved: anyone who downloads this file can copy an email and password combination and try logging in immediately. The homepage URL attached to each record tells an attacker exactly which site or service the credentials belong to, turning a pile of stolen data into a ready-made target list.

What Was Exposed in the 8.9Kk ULP Log

• Email addresses
• Plaintext passwords
• Homepage URLs tied to each login

Why This Matters for Anyone Reusing Passwords

Most people reuse the same password across several accounts. Once a password is exposed in plaintext next to an email address, attackers automate the process of trying that same pair on banking sites, email providers, and social media, a tactic known as credential stuffing. A single reused password can lead to account takeover, and from there to identity theft or direct financial fraud if the compromised account touches money or personal records.

How a Stealer Log Like This One Gets Built

Stealer logs come from malware quietly installed on a victim's computer, often through a fake download, cracked software, or a malicious email attachment. Once running, the malware scans the browser for saved passwords, autofill data, and stored login sessions, then bundles everything into a file and sends it back to the attacker. That file is what eventually gets posted or sold on hacking forums, exactly as happened with this 8.9Kk ULP log.

Check If You Are Affected

If you have used the same email and password combination on more than one site, this is worth checking now. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including logs like this one, to tell you whether your information has surfaced. It only takes a minute to check.