# Sustained censorship in VN (2026-11)

**Country:** 🇻🇳 Vietnam (VN)
**Date:** 2026-11-02
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 4 days of elevated network interference averaging 74.2% anomaly rate.

## Metrics

- Confidence: 72%
- Measurements (stored incident count; not the qualifying evidence count): 4
- Anomaly Rate: 74.2%

## Evidence

- **OONI** (measurement): OONI tor: 14 anomaly + 0 confirmed / 18 nonfailed measurements (77.8% blocked; 0 failed)
  - Observed: 2026-11-03
  - Confidence: 81%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-11-03&until=2026-11-04)
- **OONI** (measurement): OONI tor: 8 anomaly + 0 confirmed / 10 nonfailed measurements (80.0% blocked; 0 failed)
  - Observed: 2026-11-03
  - Confidence: 82%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-11-03&until=2026-11-04)
- **OONI** (measurement): OONI tor: 8 anomaly + 0 confirmed / 9 nonfailed measurements (88.9% blocked; 0 failed)
  - Observed: 2026-11-03
  - Confidence: 86%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-11-03&until=2026-11-04)
- **OONI** (measurement): OONI tor: 2 anomaly + 0 confirmed / 4 nonfailed measurements (50.0% blocked; 0 failed)
  - Observed: 2026-11-02
  - Confidence: 70%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-11-02&until=2026-11-03)

## 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.

## Data Sources

ooni

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). Sustained censorship in VN (2026-11) [VN-2026-1012]. Retrieved from https://voidly.ai/incident/VN-2026-1012

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*Report generated by Voidly Research on 2026-11-05*
*Data licensed under CC BY 4.0*
*Incident ID: VN-2026-1012*
*Permalink: https://voidly.ai/incident/VN-2026-1012*