HARMONYLOGS Credential Dump: 3,454 Users’ Passwords in Telegram

HEROIC found the HARMONYLOGS stealer log on 30-Apr-2026, a file exposing 3,454 records containing email addresses, plaintext passwords, and the URLs of services where those credentials were harvested from compromised devices. The log was released publicly on Telegram on April 29, 2026.

Why the HARMONYLOGS Breach Is Dangerous

Infostealer malware compiled these 3,454 records from infected machines before the data was packaged and shared publicly on Telegram. Attackers can immediately use these plaintext credentials in automated login attacks against email, banking, and other online accounts.

What Was Exposed in the HARMONYLOGS Leak

• Email addresses
• Plaintext passwords
• URLs (the exact services where credentials were captured from infected devices)

Why This HARMONYLOGS Data Puts You at Risk

Credential stuffing, account takeover, identity theft, and financial fraud are all immediate risks when email-password pairs are exposed in plaintext. Attackers automate login attempts across hundreds of platforms, and victims typically have no warning until accounts are compromised.

How Stealer Log Works

Infostealer malware spreads through phishing campaigns, trojanized software, and malicious downloads. After infecting a device, it harvests stored credentials from browsers and apps, then sends the data to attacker-controlled infrastructure. The resulting logs are packaged and distributed through Telegram channels and dark web forums.

Check If Your Data Was Exposed

HEROIC operates one of the world's largest breach databases, covering more than 400 billion leaked records. Use HEROIC's free breach scanner to check if your email address or credentials appeared in the HARMONYLOGS leak or thousands of other breaches in our database.