Inside the Logs 1 November Breach: How 118,105 Records Were Compromised

On November 1, 2025, a Telegram user uploaded a stealer log file titled "Logs_1 November" containing 118,105 records. HEROIC analysts reviewing the file found that each record includes an email address, a plaintext password, and a URL identifying the associated service, all pulled from infected devices in the United States with no encryption or obfuscation of any kind. This is one of the larger single-file stealer log dumps to appear on public channels in this range.

Why This Is Dangerous

The scale of this leak is what makes it particularly alarming. With over 118,000 records exposed at once, the attack surface for credential stuffing is enormous, and criminals do not need to target any specific service since they can run the entire list through automated tools against hundreds of platforms simultaneously. Plaintext passwords are the worst possible outcome in a breach scenario, since there is nothing to crack, and if the same password was reused elsewhere, every one of those accounts faces the same risk.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated service URLs

Why This Matters

Over 118,000 records is a meaningful number. Each one is a real person's login information, and most of those people probably have no idea their credentials are circulating on Telegram. By the time a breach like this is reported, the data has typically already been downloaded many times and is being actively tested against popular services. Stealer logs of this size also tend to be repackaged and resold on underground markets, so exposure does not end with the original upload.

How Stealer Logs Work

Infostealer malware works by infecting individual devices and silently harvesting stored credentials, typically arriving through phishing emails, trojanized software installers, or malicious links. Unlike ransomware, which announces itself loudly, an infostealer is designed to be invisible, collecting data quietly before uploading everything in a single package to a server controlled by the attacker.

After collection, the data gets organized into log files structured by date or batch size, then posted to Telegram channels or sold on underground forums. The "Logs_1 November" name fits this pattern, suggesting it was part of a regular collection operation rather than a one-time event.

Check If You Were Affected

Use HEROIC's free breach checker at heroic.com to search your email address against thousands of known breach datasets, including stealer logs like this one, and protect your accounts before any real damage is done.