LeakBase 40Kk ULP Kanada1990 Exposes 1.7M Credentials

HEROIC analysts identified the LeakBase 40Kk ULP by Kanada1990 dataset as part of ongoing dark web monitoring. Published on June 23, 2024, this stealer log compilation exposed 1,746,773 records containing email addresses, plaintext passwords, and homepage URLs. The data was compiled by threat actor Kanada1990 and distributed across underground forums, putting nearly 1.75 million individuals at immediate risk of account compromise.

Why This Is Dangerous

Stealer logs are among the most immediately exploitable breach types because the credentials are ready to use without any further cracking. Plaintext passwords require no decryption, no brute force, and no dictionary attack. Anyone who obtained this dataset can attempt to log in to your email, bank, social media, or any other account using your exact password within seconds. The homepage URLs included alongside credentials can reveal which websites you frequent, making targeted follow-up attacks more precise.

What Was Exposed

• Email Address
• Plaintext Password
• HomePage URL

Why This Matters

When plaintext passwords circulate in breach datasets, criminals use them in automated credential stuffing attacks, testing the same username and password combination against hundreds of services simultaneously. A single compromised credential can lead to account takeover across banking, shopping, and healthcare platforms. Once inside an account, attackers can steal financial data, lock out the legitimate owner, make unauthorized purchases, or sell access to other criminals. The inclusion of homepage URLs compounds the risk by revealing browsing patterns that can be exploited for social engineering and phishing.

How Stealer Logs Work

Stealer logs are collections of credentials harvested by infostealer malware installed on end-user devices, often without the victim's knowledge. The malware silently captures passwords saved in browsers, login sessions, and autofill data, then transmits that information to the attacker. Criminals like Kanada1990 aggregate these stolen credential sets into large compilations and sell or distribute them on hacking forums under names like ULP (URL-Login-Password). The victim typically has no idea their device was infected or that their credentials were exfiltrated.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against over 400 billion exposed records, including stealer log datasets like this one. If your credentials appear in this or any other breach, you will receive an immediate alert so you can act before attackers do. Visit heroic.com to run a free scan now and find out whether your information was exposed in the LeakBase 40Kk ULP by Kanada1990 dataset or any other known breach.