FATHER121 Dropped 5.9M Logins: Inside the LeakBase RLREBORN 45.5M ULP

HEROIC intelligence identified the LeakBase RLREBORN 45.5M ULP by FATHER121 dump shortly after it appeared on a prominent hacking forum on December 28, 2024. The file contained 5,921,354 unique records, each pairing an email address, homepage URL, and plaintext password. Posted under the alias FATHER121 and advertised as 45.5 million lines of fresh valid private ULP data, it ranks among the largest stealer-log drops of the year.

Why This LeakBase Stealer Log Dump Is Dangerous

The broker behind this dump is doing the hard work of credential stuffing operators for free. FATHER121 aggregated, deduplicated, and validated millions of infostealer records, then packaged them in a format that automated login tools can consume line by line. Because each record includes the target URL alongside a live plaintext password, attackers can attempt authentication against the exact service the password unlocks instead of guessing which platforms to target.

What Was Exposed in LeakBase RLREBORN 45.5M ULP by FATHER121

• 5,921,354 unique email addresses
• Plaintext passwords drawn from infostealer infections
• Homepage URLs tying each credential to a specific service
• Advertised as 45.5 million fresh valid lines of ULP data

Why This Matters

Dumps at this scale power credential stuffing that hits millions of accounts per hour, drive account takeover against banking and SaaS platforms, enable identity theft where attackers hold authenticated proof of access, and underpin business email compromise operations where a single employee credential turns into invoice fraud. Because the leak pairs login data with URLs, attackers can also run targeted phishing campaigns that reference the exact services a victim uses.

How Stealer Log Database Dumps Work

Infostealers like LummaC2, RedLine, and Vidar silently extract saved credentials, cookies, and autofill data from infected Windows devices. Affiliates post the raw logs to Telegram channels where aggregators like FATHER121 clean and consolidate them into large ULP compilations. The finished product is sold as a subscription, traded for reputation, or eventually leaked publicly to degrade competitors and attract attention to the broker's brand.

Check If You Are Affected

HEROIC indexes more than 400 billion compromised records across stealer logs, dark web forums, and underground marketplaces. Run a free scan to confirm whether your email address and plaintext password appeared in the LeakBase RLREBORN 45.5M ULP or any related credential compilation.