2,018 Plaintext Passwords Surfaced in the Mix 39 Telegram Dump

On May 18, 2026, HEROIC analysts identified a stealer log file labeled Mix 39 circulating on Telegram. The dataset contains 2,018 records, each combining an email address, a plaintext password, and the URL of the website where the credential was captured. As part of a numbered series of mixed credential dumps, Mix 39 represents another batch in an ongoing campaign to distribute stolen login data to a broad audience of potential attackers.

Why Plaintext Passwords Require Immediate Attention

Credentials stored in plaintext are the equivalent of leaving your house key under the doormat with a sign pointing to it. There is no encryption layer, no hash function, and no salting protecting these passwords. Anyone who downloads the Mix 39 file can read every password in full and begin testing them against live services within seconds.

The absence of any protective encoding means the usual time advantage that victims rely on — the window between a breach and the moment attackers crack the passwords — does not exist here. For the 2,018 people in this dump, the exposure was total from the moment the file was shared.

What Was Exposed in the Mix 39 Dump

• Email Addresses — Login identifiers tied to various online accounts, providing attackers with both a username and a contact channel for phishing follow-ups.
• Plaintext Passwords — Completely unprotected passwords that work the moment they are copied into a login form.
• URLs — The exact websites associated with each credential, eliminating any need for attackers to guess which service a password belongs to.

Why 2,018 Credentials Trigger Thousands of Attacks

A dump of 2,018 credentials does not result in just 2,018 account compromises. Password reuse amplifies the damage dramatically. When attackers run these credentials through stuffing tools that test each pair across popular platforms — Gmail, Facebook, Amazon, banking sites — the number of successfully breached accounts can multiply several times over.

The mix format of this dump suggests the credentials were collected from a variety of sources and services, meaning the victims span multiple industries and platforms. This diversity makes the dataset more valuable to attackers, who can target different types of accounts depending on their goals, whether financial fraud, identity theft, or corporate espionage.

How Stealer Logs Feed the Credential Economy

Stealer logs are produced by infostealer malware running on compromised devices. The malware infiltrates systems through phishing emails, compromised software downloads, or exploit kits embedded in malicious websites. Once installed, it exports saved passwords from web browsers, captures active session cookies, and records login keystrokes.

The stolen credentials are compiled into structured files and distributed through Telegram channels, often in numbered batches. Mix 39 is the thirty-ninth installment in its series, indicating a sustained and prolific credential harvesting operation. Each new batch adds fresh ammunition to the credential-stuffing pipeline that fuels automated account takeover campaigns worldwide.

Check If Your Credentials Appear in This Leak

Finding out if your data is part of this dump takes seconds. HEROIC's free breach scanner indexes more than 400 billion compromised records from data breaches and stealer log distributions around the world. Enter your email to discover whether your credentials have surfaced in Mix 39 or any other known leak.

If you find a match, change the compromised password immediately and update any other account where you used the same login. Activate two-factor authentication on every service that offers it, and consider using a dedicated password manager to generate truly unique credentials for each account. Proactive defense is the only reliable way to stay ahead of the credential economy.