Internet outage in South Korea

Voidly Research

Incident record · South Korea

Internet connectivity disruption in South Korea

Type: disruption
Status: active
Severity: critical

Inspect evidence Cite this incident

Source summary

IODA detected significant connectivity drop in South Korea. 2 critical alerts recorded.

Open incident JSON

Reported anomaly rate: 78.6%
Source measurement count: 2
Incident confidence: 67%

Linked evidence has its own count and confidence fields. These quantities are not interchangeable.

Follow the evidence

16 linked records.

Inspect the observation, the upstream claim and why it was linked.

Linked observation dates

16 dated · 0 without a verified timezone

IODA16 linked records

Jul 15, 2026 · 15:08 UTCJul 15, 2026 · 23:32 UTC

Each point is a linked record. Horizontal position shows observation time; stacking separates nearby points. The full records below provide the values. This is not a measured outage-duration chart.

Upstream claims are attributed to their source. Multiple records or source names do not by themselves establish independent corroboration.

IODA16 records · open evidence

outage · critical

ioda:alert:merit-nt:region:2159:1784158320

Jul 15, 2026 · 23:32 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 06:00:04.337399 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 231186233,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T23:32:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T06:00:04.337399",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784158320",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784154060

Jul 15, 2026 · 22:21 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509591,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T22:21:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784154060",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784152440

Jul 15, 2026 · 21:54 UTC

Signal value: 0.885714
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509579,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T21:54:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8857142857142857,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784152440",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784151960

Jul 15, 2026 · 21:46 UTC

Signal value: 0.828571
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509574,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T21:46:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8285714285714286,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784151960",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784151180

Jul 15, 2026 · 21:33 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509572,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T21:33:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784151180",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784149920

Jul 15, 2026 · 21:12 UTC

Signal value: 0.828571
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509566,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T21:12:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8285714285714286,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784149920",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784148300

Jul 15, 2026 · 20:45 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509557,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T20:45:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784148300",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784146080

Jul 15, 2026 · 20:08 UTC

Signal value: 0.857143
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509547,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T20:08:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8571428571428571,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784146080",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784145540

Jul 15, 2026 · 19:59 UTC

Signal value: 0.857143
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509544,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T19:59:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8571428571428571,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784145540",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784143920

Jul 15, 2026 · 19:32 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509540,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T19:32:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784143920",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784143440

Jul 15, 2026 · 19:24 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509536,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T19:24:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784143440",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784141940

Jul 15, 2026 · 18:59 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509534,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T18:59:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784141940",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784140860

Jul 15, 2026 · 18:41 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509526,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T18:41:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784140860",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784137080

Jul 15, 2026 · 17:38 UTC

Signal value: 0.8
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-16 00:00:05.625689 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 230509504,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T17:38:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-16T00:00:05.625689",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784137080",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784130660

Jul 15, 2026 · 15:51 UTC

Signal value: 0.8
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-15 18:00:05.445727 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 229831475,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T15:51:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-15T18:00:05.445727",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784130660",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:2159:1784128080

Jul 15, 2026 · 15:08 UTC

Signal value: 0.771429
Signal baseline: 35
Evidence confidence: 80%
Link confidence: 80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved: 2026-07-15 18:00:05.445727 · timezone unspecified

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "KR",
  "domain": null,
  "domainCategory": null,
  "id": 229831459,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-07-15T15:08:00Z",
  "probeNodeId": null,
  "regionCode": "2159",
  "retrievedAt": "2026-07-15T18:00:05.445727",
  "riskTier": 4,
  "signalBaseline": 35,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7714285714285715,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:2159:1784128080",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Busan",
  "upstreamSeverity": "critical"
}

Source-reported corroboration

The source’s corroboration assessment is separate from incident confidence and evidence-link confidence. Inspect its source list, count and description.

{
  "description": "Single source: ioda",
  "evidenceCount": 16,
  "level": "low",
  "score": 0.65,
  "sourceCount": 1,
  "sources": [
    "ioda"
  ]
}

Declared incident sources: IODA.

This record does not list two distinct sources. Treat it as a single-source or uncorroborated record.

Scope and attribution

What the record names.

Methodology

Affected services

No services named.

Incident mechanism

Infrastructure outage

Individual evidence may carry more specific methods. Those do not automatically describe the entire incident.

Affected domains · 0

Domains named by the source record. Each link opens country-specific OONI measurements; a named domain is not a blanket national-block verdict.

No domains named.

Networks and evidence attribution

ASNs named by this source record: None listed.

This aggregate describes fields literally present in linked evidence. It does not identify who caused an event or prove intent.

{
  "asns_attributed": 0,
  "domains_attributed": 0,
  "methods": [
    {
      "evidence_count": 16,
      "method": "outage"
    }
  ],
  "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
  "sources": [
    "ioda"
  ],
  "top_asns": [],
  "top_domains": []
}

What this record cannot establish

Measurements alone do not attribute an event to a government, ISP or another actor, and do not establish intent. An outage or anomalous result can have several explanations.

The country label is an aggregation scope. It is not a census of every network, city or service. Regional or ASN fields belong to their individual source evidence and should not be expanded into a national claim.

The source observation window and evidence timestamps do not prove an exact start and stop of blocking.

Signal definitions, baseline rates and model versions depend on the source. This record does not establish a common baseline or calibrated certainty. Use the source’s specific signal definition and evaluation before interpreting a score.

Inspect measurement coverage

Cite this incident

Take the record
with you.

Use the permanent published URL.
The original source title is preserved.

BibTeX ↓RIS ↓Markdown ↓JSON ↓Full citation page →

APA citation

Voidly Research. (2026). Internet connectivity disruption in South Korea [KR-2026-0006]. Voidly Global Censorship Index. https://voidly.ai/incident/KR-2026-0006

The record over time.

Created: 2026-07-15 18:00:07.999502 · timezone unspecified
Last updated: 2026-07-16 06:00:06.863320 · timezone unspecified
Revision: 3

Revision history and original fields

Revision-history array unavailable.

Canonical ID: KR-2026-0006. Source ID: KR-2026-0006. Hash ID: ec38e38b2965.

Additional source duration field: 8.4 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON

{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [],
  "anomalyRate": 0.7857142857142858,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 16,
        "method": "outage"
      }
    ],
    "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
    "sources": [
      "ioda"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.67,
  "corroboration": {
    "description": "Single source: ioda",
    "evidenceCount": 16,
    "level": "low",
    "score": 0.65,
    "sourceCount": 1,
    "sources": [
      "ioda"
    ]
  },
  "country": "KR",
  "countryName": "South Korea",
  "createdAt": "2026-07-15T18:00:07.999502",
  "description": "IODA detected significant connectivity drop in South Korea. 2 critical alerts recorded.",
  "duration": 504,
  "durationHours": 8.4,
  "endTime": "2026-07-15T23:32:00Z",
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 231186233,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T23:32:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T06:00:04.337399",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.7714285714285715,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784158320",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "domain": null,
      "domainCategory": null,
      "id": 230509591,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T22:21:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784154060",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
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      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
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    {
      "asn": null,
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      "continent": "Asia",
      "countryCode": "KR",
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      "domainCategory": null,
      "id": 230509579,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T21:54:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784152440",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
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      "continent": "Asia",
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      "domain": null,
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      "id": 230509574,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T21:46:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784151960",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
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    {
      "asn": null,
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      "continent": "Asia",
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      "domain": null,
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      "id": 230509572,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T21:33:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784151180",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
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    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 230509566,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T21:12:00Z",
      "probeNodeId": null,
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784149920",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
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    {
      "asn": null,
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      "continent": "Asia",
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      "observedAt": "2026-07-15T20:45:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
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    {
      "asn": null,
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      "continent": "Asia",
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      "id": 230509547,
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      "observedAt": "2026-07-15T20:08:00Z",
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      "retrievedAt": "2026-07-16T00:00:05.625689",
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      "source": "ioda",
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T19:59:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.8571428571428571,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784145540",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 230509540,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T19:32:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
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      "signalValue": 0.7714285714285715,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784143920",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 230509536,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T19:24:00Z",
      "probeNodeId": null,
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      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
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      "signalValue": 0.7714285714285715,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784143440",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
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      "id": 230509534,
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T18:59:00Z",
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      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
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      "source": "ioda",
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
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    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
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      "id": 230509526,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T18:41:00Z",
      "probeNodeId": null,
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      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
      "signalBaseline": 35,
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "id": 230509504,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T17:38:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-16T00:00:05.625689",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.8,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784137080",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 229831475,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T15:51:00Z",
      "probeNodeId": null,
      "regionCode": "2159",
      "retrievedAt": "2026-07-15T18:00:05.445727",
      "riskTier": 4,
      "signalBaseline": 35,
      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784130660",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "KR",
      "domain": null,
      "domainCategory": null,
      "id": 229831459,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-07-15T15:08:00Z",
      "probeNodeId": null,
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      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:2159:1784128080",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/KR",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Busan",
      "upstreamSeverity": "critical"
    }
  ],
  "evidenceCount": 16,
  "evidenceSourceBreakdown": {
    "ioda": 16
  },
  "evidenceSpan": {
    "earliest": "2026-07-15T15:08:00Z",
    "latest": "2026-07-15T23:32:00Z"
  },
  "flag": "🇰🇷",
  "generated_at_utc": "2026-09-20T14:46:33.398243Z",
  "hashId": "ec38e38b2965",
  "id": "KR-2026-0006",
  "incidentType": "disruption",
  "measurementCount": 2,
  "mechanism": "Infrastructure outage",
  "readableId": "KR-2026-0006",
  "reportUrl": "https://api.voidly.ai/data/incidents/ec38e38b2965/report?format=markdown",
  "revision": 3,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ioda"
  ],
  "startTime": "2026-07-15T15:08:00Z",
  "status": "active",
  "title": "Internet connectivity disruption in South Korea",
  "updatedAt": "2026-07-16T06:00:06.863320"
}

All South Korea incidents

Sep 11, 2026 · censorshipCensorship detected in KR Aug 29, 2026 · censorshipCensorship detected in KR Aug 25, 2026 · censorshipCensorship detected in KR Aug 21, 2026 · disruptionInternet connectivity disruption in South Korea Aug 21, 2026 · censorshipCensorship detected in KR Aug 14, 2026 · disruptionInternet connectivity disruption in South Korea

More with the same mechanism · Infrastructure outage

Aug 3, 2026Internet connectivity disruption in South Korea Jul 16, 2026Internet connectivity disruption in South Korea Jun 20, 2026Internet connectivity disruption in South Korea May 3, 2026Internet connectivity disruption in South Korea Mar 22, 2026Internet connectivity disruption in South Korea

Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

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Source summary

16 linked records.

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