Researchers Link the 1000 PCS AUGUST 4 Telegram Dump to 13,289 Stolen Credentials

HEROIC analysts tracked a stealer log breach in August 2023 when a Telegram user uploaded a file titled 1000 PCS - AUGUST 4, exposing 13,289 records. The data included email addresses, plaintext passwords, and URLs linking each credential set to its corresponding website or service. The name of the file, referencing 1,000 pieces uploaded on August 4th, indicates this was part of a structured batch release by a threat actor actively distributing stolen credential data through Telegram channels.

Why This Is Dangerous

Batch credential releases like 1000 PCS - AUGUST 4 are designed for rapid exploitation. With 13,289 records in a single upload and passwords stored in plaintext, attackers can begin testing credentials immediately after download. The structured nature of the file, pairing each email address with a password and the target URL, removes the usual friction criminals face when trying to monetize stolen data. This is credential exploitation made easy.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (pinpointing exactly which websites and services each credential belongs to)

Why This Matters

When over 13,000 sets of matched credentials hit Telegram in a single upload, the downstream effects spread quickly. Automated credential stuffing tools can test these logins accross major platforms within minutes of the file being posted. Victims may face unauthorized account access, finacial fraud, and identity theft before they ever realize their data was stolen. People who use the same password across multiple sites face compounded risk, since a single match in this log could open many doors for attackers. Breach monitoring is the only way to detect this type of exposure early.

How Stealer Logs Work

The 1000 PCS - AUGUST 4 log was produced by infostealing malware running on victim devices. Infostealers are typically spread through malicious email attachments, fake software installers, or cracked programs downloaded from unofficial sources. Once deployed, the malware operates silently, harvesting browser-stored credentials, session cookies, and keystrokes. The compiled log is sent to the attacker's server and later uploaded to platforms like Telegram in structured batches. The naming convention of this file, referencing a piece count and a date, suggests the threat actor operated a regular distribution schedule, releasing batches of stolen credentials on a recurring basis.

Check If You Are Affected

Researchers at HEROIC have indexed this breach in a database of over 400 billion records available through HEROIC's free breach scanner. If your email address appeared in the 1000 PCS - AUGUST 4 Telegram upload or in any other stealer log, HEROIC can alert you so you can take immediate action. Check if your data was exposed today and stay ahead of the threat actors who rely on victims remaining uninformed and unprotected.