Verified breach record

MDPI Data Breach

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

Breach date: August 30, 2016845,012 affected accounts in the record
01

What happened?

In August 2016, the Swiss scholarly open access publisher known as MDPI had 17.5GB of data obtained from an unprotected Mongo DB instance. The data contained email exchanges between MDPI and their authors and reviewers which included 845k unique email addresses. MDPI have confirmed that the system has since been protected and that no data of a sensitive nature was impacted. As such, they concluded that notification to their subscribers was not necessary due to the fact that all their authors and reviewers are available online on their website.

02

When did it happen?

The breach date in the public record is August 30, 2016. The record was added to the catalogue on March 25, 2018 and last updated there on March 25, 2018.

03

What information was reported as exposed?

  • Email addresses
  • Email messages
  • IP addresses
  • Names

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 MDPI or used mdpi.com around August 30, 2016. 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.

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.

Monitor the accounts involved

Review the affected service and connected accounts for changes you did not make. Keep a copy of the breach notice and your actions.

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.