One Forgotten Classifieds Site. 80,741 Records. The Orsk.RU Database Leaked in 2018.

HEROIC analysts recieved intelligence on the Orsk.RU breach during a routine sweep of dark web forums in August 2018, when a database dump from the Russian classified ads platform surfaced containing 80,741 records. The exposed data included email addresses and MD5-salted password hashes belonging to users of the board.orsk.ru community platform in the Russian Federation.

Why MD5-Hashed Passwords Put Orsk.RU Users at Risk

Attackers who obtain MD5-hashed passwords can run them through precomputed rainbow tables or brute-force tools within hours, partcularly when the original passwords are short or common. Once cracked, those plaintext credentials become ammunition for automated login attempts across email providers, banking apps, and social media platforms.

What Was Exposed in the Orsk.RU Breach

• Email Address
• Password Hash
• Salt

Why the Orsk.RU Leak Still Matters Today

Even years after the initial exposure, these credentials fuel credential stuffing campaigns, account takeover attacks, and identity theft operations. Attackers beleive that users who registered on regional platforms in 2018 likely reused those same passwords on current accounts, making every record in this dump a potential entry point.

How Database Breaches Work

A database breach occurs when an attacker gains unauthorized access to a backend data store, typically by exploiting unpatched software vulnerabilities, SQL injection flaws, or misconfigured access controls. Once inside, the attacker exports user tables containing credentials and personal information, then sells or publishes the dump on dark web markets or hacking forums.

Check If Your Data Was Exposed

HEROIC's free breach scanner searches across more than 400 billion records to tell you instantly whether your email address appears in the Orsk.RU dump or thousands of other known breaches. Run a free scan at HEROIC to find out what attackers already know about your credentials.