The CryptogoL Stealer Log Exposed 15,945 Stolen Login Credentials

In August 2026, HEROIC analysts identified a stealer log file named "CryptogoL12.26" shared by a Telegram user. The file contained 15,945 records of stolen login data, pulled directly from infected devices, and included email addresses, plaintext passwords, and the URLs of the websites each login belonged to. As with other stealer logs, this data wasn't taken from one company's servers, it was harvested straight off victims' own computers by info-stealing malware.

Why Freshly Stolen Login Data Is So Dangerous

Because this data came from malware running on a live, infected device, the passwords inside were saved and in active use at the time of infection. That makes them far more likely to still work than credentials pulled from an old company breach. Each entry also lists the exact website the login was captured from, so an attacker can go straight to that account without any trial and error.

What Was Inside the CryptogoL12.26 Log

• Email addresses tied to infected devices
• Plaintext passwords saved in the victim's browser
• URLs identifying the exact site each login was used on

Why This Puts More Than One Account at Risk

Most people reuse passwords across several accounts, which is exactly what makes a log like this dangerous beyond the original 15,945 entries. Criminals run these email and password pairs through automated tools that quietly test the same login on banking, email, and shopping sites, a tactic known as credential stuffing. A single reused password can lead to account takeover, financial fraud, or identity theft long after the original infection happened.

How a Stealer Log Like CryptogoL12.26 Gets Made

Stealer logs come from info-stealing malware that infects a device, often through a fake download, cracked software, or a malicious attachment, and then quietly copies saved browser passwords and autofill data before sending it to the attacker. The stolen data from each infected device is bundled into a "log," and logs like this one get named, organized, and passed around on Telegram channels and dark web marketplaces, sometimes sold in batches to other criminals.

Check If Your Login Was Caught in This Log

If a device you've used was ever infected by password-stealing malware, your login details could already be sitting in a log like this one. HEROIC's free dark web breach scanner checks your email against more than 400 billion leaked records, including stealer logs, so you can find out quickly and change any exposed passwords before they're misused.