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Data breach

i-Scream Media breach exposes about 200,000 teacher-member records

First reported · Last reported · 18 related reports

In March 2026, about 200,000 personal information records belonging to teacher members were leaked from i-Scream Media, exposing names, phone numbers, dates of birth, school information, user IDs, and other details. The company announced the breach on March 11, while teachers’ organizations demanded accountability and measures to address the harm, and filed complaints with the Anti-Corruption and Civil Rights Commission. Follow-up findings revealed that the company had not detected the breach itself before the Korea Internet & Security Agency (KISA) identified signs of anomalous activity, and that it had not obtained ISMS certification, which had been mandatory for it since 2022.

Key facts

Affected organization
i-Scream Media
Incident type
Data breach
Occurred / detected
2026-03
Scale of damage
About 200,000 personal information records belonging to teacher members
Cause / method
Hacking
Location
South Korea

If your data was exposed

View i-Scream Media notice ↗

Exposed dataNamePhone numberDate of birthUsername

  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 organization’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 Center ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗

Lookup and notice links are official pages found by AI. Make sure the address is on the organization’s official domain before using it.

Timeline

  1. i-Scream Media announced a breach of members’ personal information.
  2. Teachers’ organizations called for accountability and measures to address the harm.
  3. A teachers’ union filed a complaint with the Anti-Corruption and Civil Rights Commission over the personal information breach.
  4. It became known that the breach involved about 200,000 personal information records belonging to elementary school teachers.
  5. It emerged that the company had paid administrative fines of 30 million won each in 2025 and 2026 for failing to obtain mandatory ISMS certification.
  6. It emerged that the company had not detected the breach itself before KISA identified signs of anomalous activity.

18 related reports

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