National Tax Service
Data Breach on March 30, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | nts.go.kr | |
| Threat Actor | LockBit | |
| Date Discovered | Mar 30, 2023 | |
| Description | NTS is committed to serving the people for their tax compliance and ensurings table tax revenue for the development of the nations economy. | |
| Leak Size | Unknown |
Credential Exposure for nts.go.kr
We've indexed 204 @nts.go.kr accounts from external breaches, plus 141 credentials for nts.go.kr itself.
Last checked Aug 16, 2026
| @nts.go.kr addresses from external breaches | |
|---|---|
| Third-party breaches | 170 accounts · across 147 breaches · 135 with a plaintext password · most recent Feb 12, 2024 |
| Combo lists | 67 accounts · most recent Aug 7, 2026 |
| Passwords for nts.go.kr accounts | |
|---|---|
| Combo lists | 94 logins · most recent Aug 8, 2026 |
| Infostealer logs | 60 logins · 59 infected devices · most recent Aug 3, 2026 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
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