What the CRYPTON_LOGS 301PCS Breach Means for 10,322 Affected Users

In November 2025, a Telegram user published a stealer log file called CRYPTON_LOGS 301PCS, exposing 10,322 records from compromised endpoints in the United States. The log contained plaintext passwords alongside email addresses and URLs, giving anyone who downloaded it immediate access to real user accounts. Stealer log dumps like this one are often shared freely on Telegram, making them accesible to a broad range of threat actors at once.

Why This Is Dangerous

Plaintext passwords in a data leak are about as bad as it gets. There's no cracking required, no decryption needed. The credentials are ready to use immediately for account takeover attempts across email, banking, social media, and corporate systems.

The CRYPTON_LOGS label suggests this is part of a recurring series, meaning the same or related threat actors are likely running ongoing stealer campaigns and distributing results through Telegram channels. That pattern makes future leaks from similar sources more probable.

With 10,322 records exposed, the number of potentially affected individuals is significant. Password reuse is common, so even accounts not directly tied to the URLs in the log may be at risk if users recycled the same credentials elsewhere.

What Was Exposed

• Email addresses
• Plaintext passwords
• Website and application URLs
• API endpoint URLs
• Endpoint device information
• Saved browser credentials
• Session tokens or cookie fragments

Why This Matters

This breach is recent, dated November 2025, which means affected users have very little time between the leak and potential exploitation. Attackers move fast once a log hits Telegram, sometimes attempting account takeovers within hours of a file being uploaded.

The combination of email addresses and plaintext passwords makes this particularly useful for credential stuffing attacks. Automated tools can test thousands of these credentials accross dozens of popular platforms in a matter of minutes, meaning the blast radius of this leak extends well beyond the URLs listed in the log itself.

How Stealer Log Works

Stealer malware is typically delivered through phishing links, fake software installers, cracked applications, or malicious browser extensions. Once running on a device, the malware silently captures saved passwords, autofill data, browser history, and session cookies, then transmits all of it to the attacker's command-and-control server.

The collected data is then bundled into log files, often sorted by date or campaign identifier. These logs are traded on dark web forums or, as occured here, shared directly on Telegram where they can be downloaded by anyone with access to the channel.

The infected device typically shows no obvious signs of compromise. Users go about their day not realizing a piece of malware already exfiltrated everything stored in their browser. By the time they notice unauthorized logins, the credentials have been in criminal hands for days or weeks.

Check If You Were Affected

If you think your information may have been included in the CRYPTON_LOGS 301PCS stealer log or any other breach, run a free check at heroic.com. HEROIC's breach checker searches your email adress against thousands of known breach databases so you can take action before attackers do.