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Incident record · Poland

Sustained censorship in PL (2026-08)

Type
censorship
Status
confirmed
Severity
critical
Inspect evidence Cite this incident

Source summary

OONI detected 37 days of elevated network interference averaging 92.3% anomaly rate.

Open incident JSON
Reported anomaly rate
92.3%

Source-defined signal; not a universal test-failure percentage.

Source measurement count
37

The record’s count can represent aggregate inputs or alerts.

Incident confidence
85%

A source score, not certainty of intentional censorship.

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

Follow the evidence

4 linked records.

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

Qualifying linked evidence sources: OONI (4). Historical incident source labels may include quarantined observations and are not detection evidence by themselves.

Linked observation dates

4 dated · 0 without a verified timezone
OONI4 linked records
Aug 13, 2026 · 12:00 UTCAug 22, 2026 · 18:00 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.

OONI4 records · open evidence

middlebox-detection · elevated

ooni:live:PL:http_invalid_request_line:2026-08-22:18

OONI http_invalid_request_line: 16/31 measurements anomalous (51.6%)

Upstream claim · OONI
Signal value
0.516129
Signal baseline
Unavailable
Evidence confidence
70.6%
Link confidence
80%

Why it is linked: OONI elevated signal in same country/month

Retrieved
Aug 24, 2026 · 03:05 UTC
Explore filtered source results
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "filtered_search",
  "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
  "confidence": 0.7064516129032258,
  "continent": "Europe",
  "countryCode": "PL",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 351300291,
  "kind": "measurement",
  "linkConfidence": 0.8,
  "linkReason": "OONI elevated signal in same country/month",
  "observedAt": "2026-08-22T18:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-08-24T03:05:55.695745Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "middlebox-detection",
  "signalValue": 0.5161290322580645,
  "source": "ooni",
  "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-22:18",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
  "unSubregion": "Eastern Europe",
  "upstreamCause": null,
  "upstreamClaim": "OONI http_invalid_request_line: 16/31 measurements anomalous (51.6%)",
  "upstreamSeverity": null
}

middlebox-detection · elevated

ooni:live:PL:http_invalid_request_line:2026-08-22:12

OONI http_invalid_request_line: 13/23 measurements anomalous (56.5%)

Upstream claim · OONI
Signal value
0.565217
Signal baseline
Unavailable
Evidence confidence
72.6%
Link confidence
80%

Why it is linked: OONI elevated signal in same country/month

Retrieved
Aug 24, 2026 · 03:05 UTC
Explore filtered source results
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "filtered_search",
  "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
  "confidence": 0.7260869565217392,
  "continent": "Europe",
  "countryCode": "PL",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 351300290,
  "kind": "measurement",
  "linkConfidence": 0.8,
  "linkReason": "OONI elevated signal in same country/month",
  "observedAt": "2026-08-22T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-08-24T03:05:55.695745Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "middlebox-detection",
  "signalValue": 0.5652173913043478,
  "source": "ooni",
  "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-22:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
  "unSubregion": "Eastern Europe",
  "upstreamCause": null,
  "upstreamClaim": "OONI http_invalid_request_line: 13/23 measurements anomalous (56.5%)",
  "upstreamSeverity": null
}

middlebox-detection · elevated

ooni:live:PL:http_invalid_request_line:2026-08-14:12

OONI http_invalid_request_line: 10/15 measurements anomalous (66.7%)

Upstream claim · OONI
Signal value
0.666667
Signal baseline
Unavailable
Evidence confidence
76.7%
Link confidence
80%

Why it is linked: OONI elevated signal in same country/month

Retrieved
Aug 15, 2026 · 03:05 UTC
Explore filtered source results
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "filtered_search",
  "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-14&until=2026-08-15&only=anomalies",
  "confidence": 0.7666666666666666,
  "continent": "Europe",
  "countryCode": "PL",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 320632982,
  "kind": "measurement",
  "linkConfidence": 0.8,
  "linkReason": "OONI elevated signal in same country/month",
  "observedAt": "2026-08-14T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-08-15T03:05:47.677191Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "middlebox-detection",
  "signalValue": 0.6666666666666666,
  "source": "ooni",
  "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-14:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-14&until=2026-08-15&only=anomalies",
  "unSubregion": "Eastern Europe",
  "upstreamCause": null,
  "upstreamClaim": "OONI http_invalid_request_line: 10/15 measurements anomalous (66.7%)",
  "upstreamSeverity": null
}

middlebox-detection · elevated

ooni:live:PL:http_invalid_request_line:2026-08-13:12

OONI http_invalid_request_line: 11/19 measurements anomalous (57.9%)

Upstream claim · OONI
Signal value
0.578947
Signal baseline
Unavailable
Evidence confidence
73.2%
Link confidence
80%

Why it is linked: OONI elevated signal in same country/month

Retrieved
Aug 15, 2026 · 03:05 UTC
Explore filtered source results
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "filtered_search",
  "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-13&until=2026-08-14&only=anomalies",
  "confidence": 0.7315789473684211,
  "continent": "Europe",
  "countryCode": "PL",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 320632978,
  "kind": "measurement",
  "linkConfidence": 0.8,
  "linkReason": "OONI elevated signal in same country/month",
  "observedAt": "2026-08-13T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-08-15T03:05:47.677191Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "middlebox-detection",
  "signalValue": 0.5789473684210527,
  "source": "ooni",
  "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-13:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-13&until=2026-08-14&only=anomalies",
  "unSubregion": "Eastern Europe",
  "upstreamCause": null,
  "upstreamClaim": "OONI http_invalid_request_line: 11/19 measurements anomalous (57.9%)",
  "upstreamSeverity": null
}
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 label: ooni",
  "evidenceCount": 4,
  "level": "low",
  "score": 0.6,
  "sourceCount": 1,
  "sources": [
    "ooni"
  ]
}

Declared incident sources (historical metadata): OONI.

Qualifying linked evidence sources: OONI (4).

Fewer than two qualifying linked source labels are present. Stored incident labels may include quarantined OONI observations and do not establish corroboration.

Scope and attribution

What the record names.

Methodology

Affected services

No services named.

Incident mechanism

Middlebox / DPI

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 qualifying linked evidence. It does not identify who caused an event or prove intent.

{
  "asns_attributed": 0,
  "domains_attributed": 0,
  "methods": [
    {
      "evidence_count": 4,
      "method": "middlebox-detection"
    }
  ],
  "note": "Aggregated from this incident's qualifying 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 qualifying linked evidence for this incident (e.g. country/ASN-level outage signals).",
  "sources": [
    "ooni"
  ],
  "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 →

The record over time.

Created
2026-09-06 10:31:53.484683 · timezone unspecified
Last updated
2026-09-06 10:31:53.484683 · timezone unspecified
Revision
1
Revision history and original fields

Revision-history array unavailable.

Canonical ID: PL-2026-0028. Source ID: PL-2026-0028. Hash ID: de93c83faa23.

Additional source duration field: 168 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON
{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [],
  "anomalyRate": 0.9227027027027022,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 4,
        "method": "middlebox-detection"
      }
    ],
    "note": "Aggregated from this incident's qualifying 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 qualifying linked evidence for this incident (e.g. country/ASN-level outage signals).",
    "sources": [
      "ooni"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.85,
  "corroboration": {
    "description": "Single source label: ooni",
    "evidenceCount": 4,
    "level": "low",
    "score": 0.6,
    "sourceCount": 1,
    "sources": [
      "ooni"
    ]
  },
  "country": "PL",
  "countryName": "Poland",
  "createdAt": "2026-09-06T10:31:53.484683",
  "description": "OONI detected 37 days of elevated network interference averaging 92.3% anomaly rate.",
  "duration": 10080,
  "durationHours": 168,
  "endTime": "2026-08-23T00:00:00Z",
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "filtered_search",
      "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
      "confidence": 0.7064516129032258,
      "continent": "Europe",
      "countryCode": "PL",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 351300291,
      "kind": "measurement",
      "linkConfidence": 0.8,
      "linkReason": "OONI elevated signal in same country/month",
      "observedAt": "2026-08-22T18:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-08-24T03:05:55.695745Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "middlebox-detection",
      "signalValue": 0.5161290322580645,
      "source": "ooni",
      "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-22:18",
      "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
      "unSubregion": "Eastern Europe",
      "upstreamCause": null,
      "upstreamClaim": "OONI http_invalid_request_line: 16/31 measurements anomalous (51.6%)",
      "upstreamSeverity": null
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "filtered_search",
      "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
      "confidence": 0.7260869565217392,
      "continent": "Europe",
      "countryCode": "PL",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 351300290,
      "kind": "measurement",
      "linkConfidence": 0.8,
      "linkReason": "OONI elevated signal in same country/month",
      "observedAt": "2026-08-22T12:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-08-24T03:05:55.695745Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "middlebox-detection",
      "signalValue": 0.5652173913043478,
      "source": "ooni",
      "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-22:12",
      "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-22&until=2026-08-23&only=anomalies",
      "unSubregion": "Eastern Europe",
      "upstreamCause": null,
      "upstreamClaim": "OONI http_invalid_request_line: 13/23 measurements anomalous (56.5%)",
      "upstreamSeverity": null
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "filtered_search",
      "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-14&until=2026-08-15&only=anomalies",
      "confidence": 0.7666666666666666,
      "continent": "Europe",
      "countryCode": "PL",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 320632982,
      "kind": "measurement",
      "linkConfidence": 0.8,
      "linkReason": "OONI elevated signal in same country/month",
      "observedAt": "2026-08-14T12:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-08-15T03:05:47.677191Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "middlebox-detection",
      "signalValue": 0.6666666666666666,
      "source": "ooni",
      "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-14:12",
      "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-14&until=2026-08-15&only=anomalies",
      "unSubregion": "Eastern Europe",
      "upstreamCause": null,
      "upstreamClaim": "OONI http_invalid_request_line: 10/15 measurements anomalous (66.7%)",
      "upstreamSeverity": null
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "filtered_search",
      "citationUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-13&until=2026-08-14&only=anomalies",
      "confidence": 0.7315789473684211,
      "continent": "Europe",
      "countryCode": "PL",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 320632978,
      "kind": "measurement",
      "linkConfidence": 0.8,
      "linkReason": "OONI elevated signal in same country/month",
      "observedAt": "2026-08-13T12:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-08-15T03:05:47.677191Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "middlebox-detection",
      "signalValue": 0.5789473684210527,
      "source": "ooni",
      "sourceRef": "ooni:live:PL:http_invalid_request_line:2026-08-13:12",
      "sourceUrl": "https://explorer.ooni.org/search?probe_cc=PL&test_name=http_invalid_request_line&since=2026-08-13&until=2026-08-14&only=anomalies",
      "unSubregion": "Eastern Europe",
      "upstreamCause": null,
      "upstreamClaim": "OONI http_invalid_request_line: 11/19 measurements anomalous (57.9%)",
      "upstreamSeverity": null
    }
  ],
  "evidenceCount": 4,
  "evidenceSourceBreakdown": {
    "ooni": 4
  },
  "evidenceSpan": {
    "earliest": "2026-08-13T12:00:00Z",
    "latest": "2026-08-22T18:00:00Z"
  },
  "flag": "🇵🇱",
  "generated_at_utc": "2026-11-05T09:19:09.894946Z",
  "hashId": "de93c83faa23",
  "id": "PL-2026-0028",
  "incidentType": "censorship",
  "measurementCount": 37,
  "mechanism": "Middlebox / DPI",
  "normalOoniObservationCount": 0,
  "normalOoniObservationNote": "These linked OONI rows carry the historical signal_level='normal' stored label and are quarantined from qualifying evidence pending regrade. The label is not proof that every row was accessible or anomaly-free: low-anomaly rows and rows with an omitted confirmed result may be present.",
  "normalOoniObservations": [],
  "readableId": "PL-2026-0028",
  "reportUrl": "https://api.voidly.ai/data/incidents/de93c83faa23/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ooni"
  ],
  "startTime": "2026-08-16T00:00:00Z",
  "status": "confirmed",
  "title": "Sustained censorship in PL (2026-08)",
  "updatedAt": "2026-09-06T10:31:53.484683"
}
All Poland incidents
Nov 5, 2026 · disruptionInternet connectivity disruption in PolandNov 1, 2026 · censorshipSustained censorship in PL (2026-11)Oct 23, 2026 · censorshipSustained censorship in PL (2026-10)Oct 19, 2026 · disruptionInternet connectivity disruption in PolandOct 18, 2026 · disruptionInternet connectivity disruption in PolandOct 16, 2026 · disruptionInternet connectivity disruption in Poland
More with the same mechanism · Middlebox / DPI
Sep 16, 2026Censorship detected in PLAug 22, 2026Censorship detected in PLAug 14, 2026Censorship detected in PLAug 13, 2026Censorship detected in PL

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

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MCP endpoints and availability

Agent summary

Facts: Sustained censorship in PL (2026-08). Country: Poland. Source type: censorship. Source status: confirmed. Reported observation window: 2026-08-16T00:00:00Z to 2026-08-23T00:00:00Z.

As of linked evidence: . Record generated: 2026-11-05T09:19:09.894946Z; page checked: 2026-11-05T09:19:09.914Z. These are different times.

Stored incident source labels: 1 distinct declared names (ooni). These are historical metadata; qualifying linked sources are shown above. Source names are not independent corroboration.

Cite: Voidly Research. (n.d.). Sustained censorship in PL (2026-08) [PL-2026-0028]. Voidly Global Censorship Index. https://voidly.ai/incident/PL-2026-0028

Publication date: Not supplied.

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