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Data breach

Personal data of 17,088 members of Democratic Party's Blue Wave community leaked

First reported · Last reported · 28 related reports

Names, usernames, encrypted passwords, email addresses and other data of 17,088 members of the Democratic Party of Korea's party member community Blue Wave were leaked through hacking. The leak is believed to have occurred in September 2025, and the party became aware of the incident on 6 August 2026 through an outside tip. Party officials expressed apologies and willingness to cooperate with the investigation, and the service was temporarily shut down on 11 August for a security check.

Key facts

Affected organisation
Democratic Party of Korea
Incident type
Data breach
Occurred / detected
2026-08-06
Scale of damage
Personal information of 17,088 Blue Wave members
Cause / method
Hacking of the party member community Blue Wave
Location
South Korea

If your data was exposed

Exposed dataNameEmailUsernamePassword

  1. Change your password, and also change it on any other site where you use the same one. Turn on two-factor authentication if available.
  2. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
  3. If you’ve suffered harm, report it. Call 118 (no area code) for privacy violations, contact the police for financial losses, and apply for dispute mediation to seek compensation.Personal Information Infringement Report Centre ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗

Timeline

  1. The Democratic Party of Korea became aware of the Blue Wave personal data leak through an outside tip.
  2. The leak of members' personal data was made public, and the party said it was unrelated to the national convention voting system.
  3. Former Secretary-General Cho Seung-lae apologised for the personal data leak and said he would cooperate in efforts to overhaul security.
  4. Han Byung-do apologised for the personal data leak and said he would cooperate with the external investigation.
  5. The Blue Wave service was temporarily shut down for a security check.

28 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.