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Mortal Online Data Breach

Understand what this public breach record reports and choose next steps based on the information involved.

Breach date: June 17, 2018606,637 affected accounts in the record
01

What happened?

In June 2018, the massively multiplayer online role-playing game (MMORPG) Mortal Online suffered a data breach . A file containing 570k email addresses and cracked passwords was subsequently distributed online. A larger more complete file containing 607k email addresses with original unsalted MD5 password hashes along with names, usernames and physical addresses was later provided and the original breach in HIBP was updated accordingly. The data was provided to HIBP by whitehat security researcher and data analyst Adam Davies.

02

When did it happen?

The breach date in the public record is June 17, 2018. The record was added to the catalogue on August 31, 2018 and last updated there on September 24, 2018.

03

What information was reported as exposed?

  • Email addresses
  • Names
  • Passwords
  • Physical addresses
  • Usernames

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

04

Who may be affected?

This record may be relevant to people who had an account or other relationship with Mortal Online or used mortalonline.com around June 17, 2018. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.

05

What should you do?

Verify whether the notice applies to you

Compare the organization, dates, and information categories with any notice you received. Use contact details you independently confirm.

Secure affected accounts

Change exposed or reused passwords, begin with your email account, and turn on multi-factor authentication where available.

Protect identity information

Review your credit reports and consider a free credit freeze if identity information could support new-account fraud.

Expect targeted phishing

Treat unexpected breach follow-ups with caution. Do not use links or phone numbers in a suspicious message; contact the organization directly.

Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.

Sources and review information

Page reviewed September 14, 2026 by the Data Breach Help Editorial Team. Catalogue details reflect the provider record and may change.