30,226 Passwords Exposed in the Vidar ArhontCorp Stealer Log Dump

30,226 Records Exposed in the Vidar ArhontCorp Stealer Log

HEROIC analysts identified a stealer log dubbed "Vidar 1 TG ArhontCorp" circulating after being uploaded by a Telegram user on 12-Jul-2026. The log contains 30,226 records, including email addresses, plaintext passwords, and the URLs of the websites those credentials unlock.

Why This Is Dangerous

Stealer logs like this one are harvested directly from infected devices, meaning the passwords inside are still active login credentials at the moment of capture, not old or already-changed passwords. Because the URLs are paired with matching usernames and passwords, anyone who obtains this log can log directly into the accounts it lists, whether that is email, banking, shopping, or social media.

What Was Exposed in the Vidar ArhontCorp Log

• Email addresses
• Plaintext passwords
• URLs tied to each set of login credentials

Why This Matters

Because the passwords in this log are stored in plaintext, anyone with access to the file can use them immediately, no cracking required. Attackers commonly feed logs like this into credential stuffing tools that test the same email and password combination across banking sites, email providers, and online retailers. If any of the 30,226 people in this log reused a password across accounts, a single exposed login can turn into a full account takeover, unauthorized purchases, or identity theft.

How Stealer Logs Like This One Work

A stealer log is created when malware, often called an infostealer, infects a computer and quietly copies saved passwords, browser autofill data, and session details before sending everything back to whoever controls the malware. The result is a file, like the one behind this breach, that pairs each stolen password with the exact website it belongs to. These files are then packaged and shared or sold on Telegram channels and dark web forums, exactly how this ArhontCorp log surfaced.

Check If You Are Affected

If you think your email address could be among the 30,226 records in this leak, HEROIC's free breach scanner checks your address against a database of more than 400 billion leaked records, including stealer logs like this one. Run a free scan to find out if your credentials were exposed, and change any reused passwords right away.