# Internet connectivity disruption in China

**Country:** 🇨🇳 China (CN)
**Date:** 2026-10-18
**Type:** Disruption
**Severity:** CRITICAL
**Status:** active

## Summary

IODA detected significant connectivity drop in China. 28 critical alerts recorded.

## Metrics

- Confidence: 75%
- Measurements (stored incident count; not the qualifying evidence count): 28
- Anomaly Rate: 79.0%

## Evidence

- **IODA** (alert): IODA detected critical level outage for Guangdong
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Gansu
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Guangxi
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Guizhou
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Chongqing
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Beijing
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Fujian
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Anhui
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Hainan
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Ningxia
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Shaanxi
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Shanxi
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Hubei
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Hunan
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Sichuan
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Yunnan
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Hebei
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Henan
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Liaoning
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Shandong
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Tianjin
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Jiangxi
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Jiangsu
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Shanghai
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Zhejiang
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Inner Mongol
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Heilongjiang
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)
- **IODA** (alert): IODA detected critical level outage for Unknown Region in China
  - Observed: 2026-10-18
  - Confidence: 80%
  - [IODA entity dashboard (observation-day parameters; not one measurement)](https://ioda.inetintel.cc.gatech.edu/country/CN?from=1792281600&until=1792368000)

## 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.
- **The mechanism** — we cannot state whether this was DNS tampering, TLS/SNI reset, HTTP blockpage, throttling, or an infrastructure outage.
- **A confirmed duration** — we report the observation window, not a verified start/stop of any block.
- **Sub-national scope** — measurement is aggregated at the country level; we cannot localize to a province, city, or network segment.
- **Independent corroboration** — fewer than two source labels appear in qualifying linked evidence; stored incident source labels may include quarantined OONI observations.
- **Whether this is censorship** — this is a connectivity *disruption* (outage) signal, not confirmed intentional blocking.

## Data Sources

ioda

These source labels come from qualifying linked evidence. Historical incident source labels and quarantined observations are excluded; multiple labels alone do not establish independent corroboration.

## Citation

Voidly Research. (2026). Internet connectivity disruption in China [CN-2026-0648]. Retrieved from https://voidly.ai/incident/CN-2026-0648

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*Report generated by Voidly Research on 2026-10-18*
*Data licensed under CC BY 4.0*
*Incident ID: CN-2026-0648*
*Permalink: https://voidly.ai/incident/CN-2026-0648*