How Malware Led to 1,459,543 Stolen Logins in the Redline Cl0ud4 Dump

HEROIC uncovered a massive stealer log dump labeled Redline Cl0ud4 ULPP (dated July 12, 2026) being freely distributed on Telegram. The collection holds 1,459,543 compromised credential records — each one captured by RedLine infostealer malware from an infected device. With every password stored in plaintext, this represents a severe and large-scale threat to affected users.

Over 1.4 Million Passwords in Plaintext

At this scale, the plaintext exposure is devastating. Every one of the 1,459,543 passwords in this dump is stored without any encryption or protection. Attackers can search the data by email address, domain, or service URL and find working credentials instantly. No password-cracking tools are needed — the data is ready to exploit the moment it is accessed.

What Was Exposed

• Email Addresses — over a million account identifiers now available to threat actors
• Plaintext Passwords — immediately usable for unauthorized logins across any matching service
• URLs — cataloging the full spectrum of compromised websites and applications

A Credential Stuffing Arsenal

With 1.4 million email-password pairs, this dump gives attackers an arsenal for large-scale credential stuffing campaigns. They deploy automated tools to test every combination against major services — email providers, financial platforms, healthcare portals, and enterprise systems. Given how commonly passwords are reused, even a small percentage of successful logins from this dataset translates into tens of thousands of additionally breached accounts.

Tracing the Path: From RedLine Infection to Telegram

Each record in this dump traces back to a device compromised by RedLine malware. The infection chain typically begins with a phishing email, a fake download link, or a trojanized application. Once installed, RedLine systematically pillages the browser — extracting every saved password, session cookie, and autofill entry. It also captures cryptocurrency wallets and system configuration data. The stolen credentials are automatically uploaded to attacker-controlled servers, compiled into massive log files, and distributed through Telegram's network of underground channels.

Check If Your Credentials Were Exposed

With over 1.4 million records in this single dump, the probability of being affected is real. HEROIC tracks more than 400 billion compromised records from data breaches and stealer logs globally. Use HEROIC's breach scanner to search your email address or domain and determine if your credentials were captured in this breach. If they were, change all affected passwords immediately and activate multi-factor authentication on every available service.