# Internet connectivity disruption in South Korea

**Country:** 🇰🇷 South Korea (KR)
**Date:** 2026-06-20
**Type:** Disruption
**Severity:** CRITICAL
**Status:** active

## Summary

IODA detected significant connectivity drop in South Korea. 16 critical alerts recorded.

## Metrics

- Confidence: 75%
- Measurements: 16
- Anomaly Rate: 72.2%

## Evidence

- **IODA** (alert): IODA detected critical level outage for South Chungcheong
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Ulsan
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for North Gyeongsang
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Busan
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Sejong
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Daegu
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Jeju
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for South Gyeongsang
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for South Jeolla
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Gyeonggi
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Gangwon
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for North Jeolla
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Seoul
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Incheon
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for Daejeon
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)
- **IODA** (alert): IODA detected critical level outage for North Chungcheong
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/KR)

## What we cannot say

- **Who caused it** — measurement data alone does not attribute the interference to any government, ISP, or other actor.
- **Intent** — anomalous or unreachable measurements indicate interference, not a stated motive or a deliberate-vs-incidental determination.
- **Which networks** — no specific ASN/ISP is identified for this incident.
- **Sub-national scope** — measurement is aggregated at the country level; we cannot localize to a province, city, or network segment.
- **Independent corroboration** — this rests on a single source; treat it as a single-source signal, not a multi-source confirmation.
- **Whether this is censorship** — this is a connectivity *disruption* (outage) signal, not confirmed intentional blocking.

## Data Sources

ioda

## Citation

Voidly Research. (2026). Internet connectivity disruption in South Korea [KR-2026-0004]. Retrieved from https://voidly.ai/incident/KR-2026-0004

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*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: KR-2026-0004*
*Permalink: https://voidly.ai/incident/KR-2026-0004*