# Sustained censorship in VN (2026-02)

**Country:** 🇻🇳 Vietnam (VN)
**Date:** 2026-02-18
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 25 days of elevated network interference averaging 57.6% anomaly rate.

## Metrics

- Confidence: 77%
- Measurements: 25
- Anomaly Rate: 57.6%

## Evidence

- **OONI** (measurement): OONI tor: 9/12 measurements anomalous (75.0%)
  - Observed: 2026-02-28
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-28&until=2026-02-28&only=anomalies)
- **OONI** (measurement): OONI tor: 6/12 measurements anomalous (50.0%)
  - Observed: 2026-02-27
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-27&until=2026-02-27&only=anomalies)
- **OONI** (measurement): OONI tor: 12/20 measurements anomalous (60.0%)
  - Observed: 2026-02-26
  - Confidence: 74%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-26&until=2026-02-26&only=anomalies)
- **OONI** (measurement): OONI tor: 10/20 measurements anomalous (50.0%)
  - Observed: 2026-02-26
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-26&until=2026-02-26&only=anomalies)
- **OONI** (measurement): OONI tor: 11/22 measurements anomalous (50.0%)
  - Observed: 2026-02-25
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-25&until=2026-02-25&only=anomalies)
- **OONI** (measurement): OONI tor: 7/13 measurements anomalous (53.8%)
  - Observed: 2026-02-23
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-23&until=2026-02-23&only=anomalies)
- **OONI** (measurement): OONI tor: 13/22 measurements anomalous (59.1%)
  - Observed: 2026-02-23
  - Confidence: 74%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-23&until=2026-02-23&only=anomalies)
- **OONI** (measurement): OONI tor: 14/26 measurements anomalous (53.8%)
  - Observed: 2026-02-23
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-23&until=2026-02-23&only=anomalies)
- **OONI** (measurement): OONI tor: 9/18 measurements anomalous (50.0%)
  - Observed: 2026-02-23
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-23&until=2026-02-23&only=anomalies)
- **OONI** (measurement): OONI tor: 7/13 measurements anomalous (53.8%)
  - Observed: 2026-02-22
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-22&until=2026-02-22&only=anomalies)
- **OONI** (measurement): OONI tor: 12/14 measurements anomalous (85.7%)
  - Observed: 2026-02-22
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-22&until=2026-02-22&only=anomalies)
- **OONI** (measurement): OONI tor: 14/19 measurements anomalous (73.7%)
  - Observed: 2026-02-22
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-22&until=2026-02-22&only=anomalies)
- **OONI** (measurement): OONI tor: 12/20 measurements anomalous (60.0%)
  - Observed: 2026-02-22
  - Confidence: 74%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-22&until=2026-02-22&only=anomalies)
- **OONI** (measurement): OONI tor: 7/14 measurements anomalous (50.0%)
  - Observed: 2026-02-20
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-20&until=2026-02-20&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 7/14 measurements anomalous (50.0%)
  - Observed: 2026-02-20
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=whatsapp&since=2026-02-20&until=2026-02-20&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 9/18 measurements anomalous (50.0%)
  - Observed: 2026-02-20
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=whatsapp&since=2026-02-20&until=2026-02-20&only=anomalies)
- **OONI** (measurement): OONI tor: 10/19 measurements anomalous (52.6%)
  - Observed: 2026-02-20
  - Confidence: 71%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-20&until=2026-02-20&only=anomalies)
- **OONI** (measurement): OONI tor: 11/22 measurements anomalous (50.0%)
  - Observed: 2026-02-19
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-19&until=2026-02-19&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 14/26 measurements anomalous (53.8%)
  - Observed: 2026-02-19
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=whatsapp&since=2026-02-19&until=2026-02-19&only=anomalies)
- **OONI** (measurement): OONI tor: 12/22 measurements anomalous (54.5%)
  - Observed: 2026-02-19
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-19&until=2026-02-19&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 9/17 measurements anomalous (52.9%)
  - Observed: 2026-02-19
  - Confidence: 71%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=whatsapp&since=2026-02-19&until=2026-02-19&only=anomalies)
- **OONI** (measurement): OONI tor: 9/17 measurements anomalous (52.9%)
  - Observed: 2026-02-19
  - Confidence: 71%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-19&until=2026-02-19&only=anomalies)
- **OONI** (measurement): OONI tor: 13/24 measurements anomalous (54.2%)
  - Observed: 2026-02-18
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-18&until=2026-02-18&only=anomalies)
- **OONI** (measurement): OONI tor: 15/20 measurements anomalous (75.0%)
  - Observed: 2026-02-18
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-18&until=2026-02-18&only=anomalies)
- **OONI** (measurement): OONI tor: 13/19 measurements anomalous (68.4%)
  - Observed: 2026-02-18
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=VN&test_name=tor&since=2026-02-18&until=2026-02-18&only=anomalies)

## 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.

## Data Sources

ooni

## Citation

Voidly Research. (2026). Sustained censorship in VN (2026-02) [VN-2026-0203]. Retrieved from https://voidly.ai/incident/VN-2026-0203

---
*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: VN-2026-0203*
*Permalink: https://voidly.ai/incident/VN-2026-0203*