Identity Theft Got Easier: LeakBase 400MB ULP Breach, 673K at Risk

HEROIC found the LeakBase 400MB ULP by hagobuy123 Stealer log breach dated April 2024, exposing 673,232 records including email addresses, plaintext passwords, and homepage URLs from LeakBase 400MB ULP by hagobuy123, an infostealer credential dump distributed on criminal forums.

Why the LeakBase 400MB ULP Breach Is Dangerous

Plaintext passwords paired with email addresses and homepage URLs give attackers immediate, targeted access to victim accounts. The homepage URLs reveal exactly which websites victims use, allowing criminals to focus credential stuffing attacks on the most valuable platforms. Attackers use these credentials to access banking, email, and social media accounts, particularly where users have reused passwords.

What Was Exposed in the LeakBase 400MB ULP Leak

• Email addresses
• Plaintext passwords
• Homepage URLs

Why This LeakBase 400MB ULP Data Puts You at Risk

Plaintext passwords from stealer logs are immediately weaponized for credential stuffing attacks. If you reuse passwords, a single exposed credential can unlock your email, bank, and social media accounts. The homepage URLs allow attackers to identify which services you actively use, making targeted account takeover and identity theft significantly more efficient.

How Stealer Logs Work

Stealer logs are created by infostealer malware that infects victim devices through phishing emails, malicious downloads, or software vulnerabilities. Once installed, the malware silently harvests saved browser passwords, cookies, and form data before transmitting the stolen credentials to criminal operators. The logs are then compiled and sold or shared on underground forums for use in account takeover attacks.

Check If Your Data Was Exposed

HEROIC operates one of the world's largest breach databases, covering more than 400 billion leaked records. Use HEROIC's free breach scanner to check if your email address or credentials appeared in the LeakBase 400MB ULP by hagobuy123 leak or thousands of other breaches in our database.