HEROIC Analysts Found 110,090 Logins in the ARHONT PRIVATE 5 Leak

In August 2026, HEROIC analysts found a stealer log labeled ARHONT PRIVATE 5, part one of a multi-part upload tied to an uploader tagged ArhontCorp on Telegram, containing 110,090 records. Each record paired an email address with a plaintext password and a web address taken from an infected device. The scan turned up no way to notify each individual directly, which is why checking your own email is the only way to learn whether you were included.

Why This Is Dangerous

What stood out during the review was how usable the data already is: nothing needs to be cracked, decoded, or guessed. A password sitting next to its matching email address and web address is ready for immediate use the moment someone downloads the file.

What Was Exposed

• Email Addresses
• Plaintext Password
• URLs

At a scale of over one hundred thousand records, the realistic risks include large-scale automated login attempts, account takeovers that go unnoticed for weeks, and fraud carried out using accounts that otherwise look completely normal. Anyone who reused the exposed password on a different service faces that same risk there too, since one leaked pair can unlock more than a single account.

A stealer log like this one is generated by malware quietly installed on a victim's own device, collecting saved browser passwords and autofill entries before sending them back to whoever controls it. That is different from a database breach pulled from a company's servers, and different from a combolist stitched together from many unrelated sources rather than one continuous infection.

See What HEROIC Analysts Found

Scan your email to check whether it appears in this file. If it does, change that password everywhere you have reused it and scan the device you normally sign in from for lingering malware.

This applies equally to personal and work email addresses saved in an infected browser.