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Data breach

112,890 Google accounts hacked at educational institutions across South Korea

First reported · Last reported · 16 related reports

A total of 112,890 Google accounts at educational institutions across South Korea, including schools and education offices, were hacked, exposing usernames and passwords. On 22 October, 1.39 million accounts, approximately 28% of all accounts, were found to still have unchanged passwords. A follow-up investigation found that Daejeon accounted for 74,246 compromised accounts, approximately 66% of the nationwide total, and revealed that it took two days to recognise the incident after the first signs of unusual activity and that attempts to block unauthorised apps had failed.

Key facts

Affected organisation
Being confirmed
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
112,890 Google accounts at educational institutions hacked
Cause / method
Not confirmed
Location
South Korea

If your data was exposed

Exposed dataUsernamePassword

  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. 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 Korean Federation of Teachers’ Unions called for measures beyond password changes in response to the compromise of school Google accounts.
  2. Around 110,000 accounts at 477 educational institutions were found to have been hacked, while 1.39 million accounts still had unchanged passwords.
  3. Reports emerged that around 1,700 educational accounts in South Gyeongsang Province had been hacked and that reports of compromised accounts had been received.
  4. It was disclosed that Daejeon accounted for 74,246 of the 112,890 compromised accounts nationwide, along with problems in recognising the incident and blocking unauthorised apps.

16 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.