National Health Insurance Service (NHIS) security incident history
Hacking, data breaches and other security incidents involving National Health Insurance Service (NHIS), with related coverage.
National Health Insurance Service Employee Leaks Members' Personal Data to Loan Companies
Impact: Personal data of several hundred employed insured members
Personal data of several hundred employed insured members was leaked from the National Health Insurance Service to loan companies. The employee who sold the personal data was dismissed, and it was raised as a problem that victims had not been notified of the leak.
Related reports: 4 · last report →NHIS long-term care portal leaks personal data of 182 people
182Impact: Personal data of 182 people
The personal data of 182 people was leaked from the National Health Insurance Service (NHIS) long-term care portal. The NHIS apologised for the leak and said it would prepare measures to prevent a recurrence, and it launched an internal audit a week after the incident.
Related reports: 3 · last report →NHIS leaks phone number in arrears reminder text
16Impact: Mobile phone number of 1 defaulter leaked to 16 unrelated defaulters
On 30 August 2024, while urging payment of overdue health insurance premiums, the National Health Insurance Service mistakenly sent a text message containing one defaulter's mobile phone number to 16 unrelated defaulters. The victim demanded 16 million won in compensation from the agency.
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