70,295 Plaintext Paswords from FB Stealer Log Breach

70,295 plaintext passwords from the FB Telegram stealer log surfaced in underground channels in August 2023, each paired with a matching email address and the URL of the exact service it was stolen from. HEROIC analysts catalogued this dataset as part of ongoing monitoring of stealer log activity distributed through Telegram. At more than 70,000 records, this is one of the larger single-upload stealer log files in the dataset category, representing a broad sweep of credential theft affecting tens of thousands of individuals across a wide range of online services.

Why This Is Dangerous

The sheer volume of this file makes it especially valuable to criminal actors. With 70,295 complete credential sets, automated attack tools can cycle through thousands of login attempts per hour, targeting the specific services identified in the URL fields. Each record is immediately weaponizable: no password cracking, no data enrichment, no additional preparation needed. Files of this size are frequently purchased by criminal organizations that run large-scale credential stuffing operations, testing each email and password pair against banking platforms, e-commerce sites, email providers, and subscription services all at once.

What Was Exposed

• Email addresses
• Plaintext passwords (captured directly from browsers, completely unencrypted)
• URLs (identifying exactly which platforms and services each credential belongs to)

Why This Matters

A breach of this scale creates ripple effects that extend far beyond the individual records it contains. Seventy thousand exposed credentials means tens of thousands of potential entry points into personal email accounts, financial platforms, healthcare portals, and workplace systems. When attackers gain access to an email account, they can use it to reset passwords on every other service linked to that address, turning one compromised record into complete control over a person's digital identity. Data from stealer logs at this scale is also routinely compiled into larger combolist databases that are traded and sold for years after the initial leak, meaning the risk does not diminish with time. Victims face ongoing exposure to credential stuffing, identity theft, financial fraud, and targeted phishing attacks that use their own account data to appear credible.

How Stealer Logs Work

The infostealer malware responsible for generating logs like this one is designed to be invisible and fast. It spreads through phishing emails that mimic legitimate services, fake software installers posted to torrent and file-sharing sites, malicious browser extensions that appear in app stores, and trojanized versions of popular applications shared in online communities. Once installed, it runs with the same system access as the logged-in user, which gives it full permission to read the browser's encrypted password vault. It decrypts every saved credential, records the associated URL, and captures any active session cookies that would let an attacker take over live, authenticated sessions without needing a password at all. All of this data is packaged into a structured log file, often within minutes of infection, and sent to the attacker or posted directly to a Telegram channel where it can be downloaded by anyone with access. The victim typically sees nothing unusual on their screen throughout the entire process.

Check If You Are Affected

With more than 70,000 records, the odds that someone you know appears in this file are significant. HEROIC's free breach scanner searches across more than 400 billion compromised records, including stealer log datasets sourced from Telegram channels like this August 2023 upload. A search by email address takes seconds and will return results from this file and thousands of other known leaks. If your email appears, HEROIC shows you exactly what was exposed and what to do next, before an attacker has the chance to use the data against you.