2,661 Plaintext Passwords Were Just Dumped in the MIX 974 Log

HEROIC analysts have flagged a stealer log file labeled "MIX 974" that appeared on a Telegram channel on June 30, 2026. The dataset contains 2,661 records exposing email addresses, plaintext passwords, and URLs extracted from compromised endpoints. The file's naming convention suggests it is part of a larger series of compiled credential dumps being distributed through Telegram.

Why Plaintext Credentials Demand Immediate Action

The passwords in the MIX 974 dump are completely unencrypted. Unlike breaches where password hashes still need to be cracked, every credential in this file is ready for immediate exploitation. An attacker can copy any password from the log and use it to attempt a login within seconds.

This zero-barrier access is what makes stealer log dumps containing plaintext passwords so dangerous. There is no grace period for affected users — from the moment the file was shared on Telegram, all 2,661 credential pairs became live ammunition for anyone interested in unauthorized account access.

What Was Exposed in the MIX 974 Dump

• Email Addresses — Full email addresses from various providers, providing attackers with both login identifiers and targets for follow-up phishing campaigns.
• Plaintext Passwords — Unencrypted passwords in their original form, eliminating any computational barrier to exploitation.
• URLs — Website addresses that victims were logged into at the time of capture, giving attackers a specific list of services to target with the stolen credentials.

Why 2,661 Credentials Create a Cascading Threat

Each record in the MIX 974 log represents a real, recently active login. These are not stale or theoretical credentials — they were captured from browser sessions on infected devices, meaning they were working at the time of theft. This gives attackers high confidence that the passwords will still be valid.

The cascade effect begins when attackers start testing these credentials beyond their original sites. With more than 60% of users recycling passwords across services, the 2,661 entries in this dump could translate to thousands of additional vulnerable accounts across banking, email, social media, and retail platforms.

How Stealer Logs Aggregate Credentials at Scale

The "MIX" designation in this log's name suggests a compilation of credentials from multiple infected machines, aggregated into a single file for distribution. Infostealer malware running on each compromised device harvested browser-stored credentials, cookies, and session tokens, then transmitted the data to attacker-controlled infrastructure.

These individual harvests are then merged into larger compilations — like MIX 974 — and shared through Telegram channels where they reach a wide audience of threat actors. The compilation approach means the 2,661 records likely span diverse geographic locations, email providers, and service types, making the dataset attractive to attackers looking for a broad range of targets.

Check If Your Credentials Appear in This Leak

Given the mixed nature of this dataset, credentials from nearly any email provider could be included. HEROIC's free breach scanner lets you search across more than 400 billion compromised records to check whether your email or password appears in this or any other known data breach. If you find your information in the results, change affected passwords immediately and enable multi-factor authentication on all important accounts.