A Quiet Alarm: 659,979 Logins Posted in BreachForums 5Kk ULP Dec #1

HEROIC Cyber's DarkHive breach intelligence has confirmed that BreachForums 5Kk ULP Dec #1 by LogLeader, a stealer log dump posted on December 26, 2024, contains 659,979 unique compromised records. Each line pairs an email address with a plaintext password and the homepage URL where the credential was originally typed.

Why This Stealer Log Dump Is Dangerous

The 5Kk ULP series released by LogLeader is unusual for how quietly it circulates. Individually the dumps are only a few hundred thousand records, which keeps them out of mainstream news, yet they drop on a near-weekly cadence and flow directly into credential stuffing bots. The lack of headlines means most victims never hear about the leak at all.

What Was Exposed in BreachForums 5Kk ULP Dec #1 by LogLeader

• 659,979 unique records
• Email addresses
• Plaintext passwords
• HomePage URLs tied to each credential

Why This Matters

Small-batch dumps like this one are perfect for attackers who want fresh, unburned credentials. Large dumps get noticed and burned quickly by defenders. A 659,979 record file is more likely to contain working logins that no one has flagged yet, giving criminals a quiet head start against banking, email, and workplace accounts.

How Stealer Log Database Dumps Work

Infostealer malware copies saved browser passwords from infected devices and uploads them to operator servers. A broker such as LogLeader aggregates the weekly yield and posts it in small batches on BreachForums. Each batch enters credential stuffing rotation within hours of release and stays in combolists for years.

Check If You Are Affected

HEROIC's identity protection platform scans over 400 billion compromised records, including BreachForums dumps like 5Kk ULP Dec #1 by LogLeader. Run a free scan to see whether your email, password, or personal data appears in this breach or any other known dataset.