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

On November 1st, 2025, a Telegram user uploaded a stealer log file titled "Logs_1 November" containing more than 118,000 individual records. This is one of the larger single-file stealer log dumps to appear on public channels in recent months, and the data within it is immediately usable by anyone who downloaded it. Plaintext passwords, email addresses, and API URLs were all sitting in the open with no encryption or obfuscation of any kind.

Why This Is Dangerous

The scale of this leak is what makes it particularly alarming. With 118,105 records exposed at once, the attack surface for credential stuffing is enormous. Criminals don't need to target any specific company or service. They can simply run the entire credential list through automated tools and see what sticks across hundreds of platforms simultaneously.

Plaintext passwords are the worst possible outcome in a breach scenario. There is nothing to crack, nothing to reverse engineer. The password you type when you log into your bank, your email, or your work VPN is right there in the file, readable by anyone. If you've reused that password accross other services, each of those accounts faces the same level of risk.

The presence of API host URLs in this dataset is also worth noting. These URLs suggest that infected endpoints were not just personal computers but potentially developer workstations or business devices with access to cloud-hosted services. API credentials in a stealer log can mean access to entire application environments, not just a single account.

What Was Exposed

• Email addresses captured from infected devices
• Plaintext passwords with no hashing or encryption
• API host URLs from cloud and enterprise applications
• Website URLs from active browsing sessions
• Browser-saved credentials from Chrome, Firefox, and Edge
• Endpoint device identifiers from compromised machines
• Session tokens from logged-in web applications

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 floating around on Telegram. By the time a breach like this is reported, the data has typically already been downloaded dozens or hundreds of times and is being actively tested against popular services.

Stealer logs of this size also tend to be re-packaged and re-sold on dark web markets. The original Telegram upload is just the first step. Your credentials could end up in the hands of a completley different criminal months down the line, long after you've forgotten this incident occured. Changing your passwords now is the only way to close that window.

How Stealer Log Works

Infostealer malware works by infecting individual devices and silently harvesting stored credentials. It typically arrives through phishing emails, trojanized software installers, or malicious links clicked in a chat or on social media. Once it's on your device, it begins scanning browser storage for saved passwords, capturing keystrokes, and intercepting form submissions.

Unlike ransomware, which announces itself loudly, an infostealer is designed to be invisible. It collects its data quietly over hours or days, then uploads everything in a single package to a remote server controlled by the attacker. The victim usually has no idea anything happened until their accounts start getting compromised.

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 file fits exactly this pattern, with a date-based name suggesting it was part of a regular collection operation rather than a one-time event.

Check If You Were Affected

If you think your email address may have appeared in this November 2025 stealer log, the fastest way to find out is to use HEROIC's free breach checker at heroic.com. Search your email address against thousands of known breach datasets including stealer logs like this one. Finding out early gives you the best chance to protect your accounts before any real damage is done.