Researchers Find 739 PCS FREE LOGS Telegram Breach Leaked 11,604 Cloud Credentials in September 2023

HEROIC analysts uncovered a stealer log file shared openly on Telegram in September 2023. Posted under the label "739 PCS - FREE LOGS," the file contained 11,604 compromised records extracted from devices infected with infostealer malware. The exposed data included email addresses, plaintext passwords, and URLs linked to cloud endpoints and API hosts. The file was made freely accessable on Telegram, meaning more than eleven thousand sets of credentials were instantly available to any criminal with access to the channel.

Why This Is Dangerous

A freely distributed log file containing 11,604 plaintext credentials and the URLs they unlock is one of the most immediately exploitable forms of breach data. Attackers do not need sophisticated tools or technical expertise. They simply download the file and start logging into cloud services and API endpoints. With cloud credentials, one successful login can cascade into access to stored customer data, internal systems, payment records, and authentication tokens for connected platforms.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (including cloud endpoints and API hosts)

Why This Matters

The scale of this breach makes it particullarly concerning. Over eleven thousand credential sets from a single stealer log file means a wide range of individuals and organisations are potentially at risk. Credential stuffing attacks powered by data like this can trigger wave after wave of account takeover attempts across banking apps, email providers, e-commerce platforms, and social media. Identity theft and financial fraud are common downstream outcomes for victims who do not discover their exposure in time.

How Stealer Logs Work

Stealer log malware infects devices through phishing campaigns, pirated software, and malicious browser extensions. Once on a device, it harvests saved passwords, browser session cookies, autofill data, and credentials entered by the user in real time. All of this is packaged into a structured log file and sent to the attacker automatically. The attacker then distributes the log file for free on Telegram or sells it on dark web forums, where buyers use the credentials for credential stuffing operations and targeted account compromises.

Check If You Are Affected

The 739 PCS - FREE LOGS Telegram stealer log breach put 11,604 credential sets into the hands of criminals. If your email or passwords were among them, your accounts may already be targeted. Run the HEROIC free scanner and check your exposure against more than 400 billion breached records from incidents worldwide. Do not wait to find out.