The Zdrav10.ru Leak Exposed 57,395 Russian Medical Accounts

HEROIC analysts identified this breach affecting Zdrav10.ru, a Russian medical portal, tracing back to an original compromise dated January 1, 2016. The confirmed breach covers 57,395 accounts, secured with a mix of plaintext and MD5-hashed passwords.

Why This Is Dangerous

This breach specifically affected Russian users of a medical information site, and the presence of plaintext passwords means some credentials required no cracking at all, they were stolen in a form ready for immediate use. For affected users, that means any account sharing the same password is exposed right now, not just in theory.

What Was Exposed

• Account credentials, including passwords stored as MD5 hashes and in plaintext
• Associated usernames tied to the Zdrav10.ru platform

The original breach record did not list additional data fields beyond account credentials, so HEROIC is reporting only what has been confirmed.

Why This Matters

Plaintext passwords are the easiest possible gift to an attacker, no decryption or cracking required. Combined with an email address, that password can be tested immediately against email providers, banking sites, and other services through automated credential stuffing tools. Anyone who reused a Zdrav10.ru password elsewhere should treat that account as compromised.

How This Database Breach Happened

This incident is classified as a database breach, meaning attackers gained direct access to the site's backend rather than targeting individual users. This typically results from an unpatched vulnerability, SQL injection, or a stolen administrator credential. Once inside, the full user table is exported, and because some passwords were stored without any hashing, that data was immediately exploitable.

Check If You Are Affected

Don't leave it to chance. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including this Zdrav10.ru breach, and tells you instantly if you were exposed. Run a free scan now.