The Redline Cl0ud4 Stealer Log: 18,831 Passwords Hit the Dark Web

HEROIC analysts identified a stealer log dump known as "20K MIX VALID Redline_Cl0ud4" circulating on Telegram in June 2026. The file, uploaded by a Telegram user under the handle Cl0ud4, contains 18,831 individual records pulled directly from infected devices, each one pairing a website URL with an email addres and its matching plaintext password.

Why the Redline Cl0ud4 Log Is Dangerous

Unlike a stolen customer database from a single company, this dump is a raw harvest from malware that lived on victims' computers. Every line in the file represents a real person who typed a real password into a real login page, and that password was captured the moment it was entered. Because the passwords are stored in plaintext, anyone who downloads this file can log into the associated accounts immediately, no cracking or guessing required.

What Was Exposed

• 18,831 individual login records
• Email addresses tied to each account
• Plaintext passwords, readable with no decryption needed
• The exact URLs where each credential was used

Why This Matters

Becuase people so often reuse the same password across multiple sites, a single leaked credential can unlock far more than the one account it was stolen from. Criminals feed dumps like this into automated tools that test the same email and password pair against banking sites, email providers, and social media platforms in a process known as credential stuffing. When it works, the result is account takeover, financial fraud, or full identity theft.

How Stealer Logs Like This One Work

A stealer log is the output of information-stealing malware, malicious software that infects a device (often through a cracked game, fake software installer, or phishing link) and quietly collects everything saved in the browser: stored passwords, autofill data, session cookies, and browsing history. The malware then packages this data into a text file and sends it back to the attacker, who often resells or gives away the file on Telegram channels like the one this dump surfaced in. The naming convention "Redline" in this file's title points to the Redline stealer, one of the most widely used strains of this malware.

Check If You Are Affected

If you have used any of your saved passwords on a device that could have been infected, it is worth checking now rather than waiting for a problem to show up. HEROIC's free breach scanner searches a database of more then 400 billion leaked records, including dumps like this one, so you can find out in seconds whether your email or password has been exposed. Scan your email for free and get a clear, actionable list of what to change.