Researchers Trace the Logs_1 July Upload to 816 Stolen Credentials on Telegram

In July 2025, HEROIC analysts identified a stealer log file uploaded to Telegram containing 816 records of real user credentials. The file, labeled Logs_1 July, included email addresses, plaintext passwords, and URLs collected from infected devices. While 816 records may seem small compared to mass breach events, stealer log data is particularly dangerous because every single record represents a real person whose device was compromised and whose active passwords were captured without their knowledge. Each entry is immediately actionable with zero technical effort required.

Why This Is Dangerous

Unlike breaches where passwords are hashed and require cracking, stealer logs capture passwords exactly as they were typed or stored on the device. There is no decryption step needed. Attackers who recieve this data have everything they need to attempt logins immediately. The inclusion of URLs tells attackers precisely which websites each victim used, so they can skip guessing and go directly to the most valuable accounts. This kind of targeted access makes stealer logs a favored tool for account takeovers and financial fraud among cybercriminal groups.

What Was Exposed

The Logs_1 July stealer log breach exposed the following data categories across 816 records:

• Email Addresses
• Plaintext Passwords
• URLs (revealing which sites the victim had active credentials for)

Why This Matters

Credential reuse is one of the most common reasons a single data breach expands into multiple account compromises. When a plaintext password is exposed alongside an email address and a list of the victim's websites, attackers have a roadmap for account takeover. They can test the same password across banking apps, email providers, and social media platforms in a matter of seconds using automated tools. The result can be drained bank accounts, locked email access, identity theft, and fraudulent activity that takes months to untangle. Even useing a seperate password for each account offers only partial protection if those passwords were also captured in this log.

How Stealer Log Breaches Work

Stealer log malware infects a device, silently collects credentials and session data, and transmits everything to a server controlled by the attacker. The attacker then packages these records into log files and shares them on Telegram channels dedicated to cybercrime. These channels sometimes require payment, but many share logs freely to build reputation or attract buyers for larger datasets. The Logs_1 July file was distributed this way, meaning the data beleived to be private was available to a wide audience of malicious actors from the moment it was posted. The original infection on each victim's device occured weeks or months before the upload.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion exposed records, including stealer log files like this one. If your data was captured in the Logs_1 July breach or any other incident in our database, you will be notified instantly so you can act before an attacker does. Use the free HEROIC scanner to protect yourself now.