Account Takeover Just Got Easier Because of the Logs_8 July Telegram Breach: 823 Records Exposed

HEROIC analysts discovered a stealer log breach originating from a Telegram upload in July 2025. A threat actor posted a log file exposing 823 records, including email addresses, plaintext passwords, and URLs. The data was harvested by malware installed on victim devices before being compiled and shared openly on Telegram channels. This type of breach is particularly dangerous because the credentials are often fresh and have not yet been flagged by monitoring services.

Why This Is Dangerous

Stealer logs expose login credentials in plaintext, meaning anyone who downloads the file can immediately use those passwords to attempt account takeovers. Unlike hashed password breaches where attackers need time to crack the data, stealer logs hand over working credentials directly. The 823 affected individuals may not even realize their devices were infected with infostealing malware at the time the data was harvested.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (indicating which websites and services were targeted)

Why This Matters

When plaintext credentials leak alongside the URLs they belong to, attackers have everything they need to log into accounts immediately. Criminals use this data for credential stuffing attacks, where automated bots try stolen username and password combinations accross dozens of popular platforms. Victims face account takeover, fraudulent purchases, and identity theft. If you reuse passwords across sites, a single stealer log entry can cascade into multiple compromised accounts. The risk of finacial fraud and unauthorized access is very real and immediate.

How Stealer Logs Work

Stealer logs are produced by a category of malware known as infostealers. These programs typically arrive on a victim's device through phishing emails, fake software downloads, or malicious browser extensions. Once installed, the malware silently records keystrokes, captures saved browser passwords, and collects session cookies. The harvested data is then packaged into a log file and sent to a command-and-control server or uploaded directly to platforms like Telegram. Threat actors then trade or sell these logs in cybercriminal marketplaces. Unlike a corporate data breach, stealer logs can include credentials from dozens of different services all gathered from a single infected machine.

Check If You Are Affected

If you believe your credentials may have been exposed in this or any other breach, HEROIC offers a free breach scanner powered by a database of over 400 billion records. You can check whether your email address or passwords have appeared in known data breaches and stealer logs. Early detection gives you the chance to change passwords and secure accounts before attackers can act. Visit HEROIC's free breach scanner today to find out if your data is at risk.