2,368 Compleat Credentials from FB Stealer Log Breach

One Telegram channel. One uploaded file. 2,368 records of real user credentials, each one a ready-made key to someone's online accounts. HEROIC analysts flagged this stealer log from August 2023, which contained email addresses, plaintext passwords, and the URLs of the exact services those passwords belong to. The data was not taken from a corporate server. It was pulled directly from infected computers by malware and handed off through Telegram.

Why This Is Dangerous

This breach is dangerous for a specific reason: the data is complete, matched, and immediately usable. Most credential leaks require attackers to pair emails with passwords from separate sources, or to crack hashed passwords before they can be used. This file does none of that work. The email, the password in plain readable text, and the website it belongs to are all in the same record. Anyone who downloaded this file from Telegram had everything needed to log in to thousands of accounts without any further effort.

What Was Exposed

• Email addresses
• Plaintext passwords (readable, unencrypted, immediately actionable)
• URLs (identifying each specific service or website tied to the credential)

Why This Matters

The 2,368 records in this file represent a direct threat to account security for the individuals involved. Credential stuffing tools can cycle through thousands of login attempts per hour, testing each stolen email and password pair against banking sites, email providers, e-commerce platforms, and more. If any of these passwords are reused across accounts, a single record can cascade into full access to a victim's digital life. Beyond direct account takeover, this kind of data fuels identity theft schemes, unauthorized wire transfers, fraudulent account openings, and social engineering attacks where the criminal uses real account details to appear credible.

How Stealer Logs Work

A stealer log is the product of an infostealer infection. Infostealers spread through many channels: phishing links, fake software cracks, malicious browser extensions, and trojanized files shared on forums and file-sharing networks. Once the malware is on a device, it quietly reads the browser's saved password database, copying every username and password stored there. Modern browsers encrypt this data at rest, but infostealers run with the same permissions as the logged-in user and can decrypt it using the operating system's own tools. The malware also records the session cookies active in the browser, which can let attackers hijack live sessions without needing a password at all. Everything collected is compiled into a structured log file and sent to the attacker, often within minutes of infection.

Check If You Are Affected

HEROIC's breach scanner covers more than 400 billion records, including stealer log data sourced from Telegram and underground forums. A free search by email address will show whether your credentials appear in this file or in any other known breach. If you find a match, changing the exposed password immediately, especially across any other site where you used the same one, can limit the damage before an attacker has the chance to act.