# Sustained censorship in TH (2026-03)

**Country:** 🇹🇭 Thailand (TH)
**Date:** 2026-03-17
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 9 days of elevated network interference averaging 61.0% anomaly rate.

## Metrics

- Confidence: 72%
- Measurements: 9
- Anomaly Rate: 61.0%

## Evidence

- **OONI** (measurement): OONI http_invalid_request_line: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-03-29
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-29&until=2026-03-29&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 6/11 measurements anomalous (54.5%)
  - Observed: 2026-03-27
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-27&until=2026-03-27&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 4/5 measurements anomalous (80.0%)
  - Observed: 2026-03-26
  - Confidence: 82%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-26&until=2026-03-26&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-03-25
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=whatsapp&since=2026-03-25&until=2026-03-25&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 3/5 measurements anomalous (60.0%)
  - Observed: 2026-03-25
  - Confidence: 74%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-25&until=2026-03-25&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-03-25
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-25&until=2026-03-25&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-03-24
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=whatsapp&since=2026-03-24&until=2026-03-24&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 6/11 measurements anomalous (54.5%)
  - Observed: 2026-03-18
  - Confidence: 72%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-18&until=2026-03-18&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 4/8 measurements anomalous (50.0%)
  - Observed: 2026-03-17
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=TH&test_name=http_invalid_request_line&since=2026-03-17&until=2026-03-17&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 TH (2026-03) [TH-2026-0157]. Retrieved from https://voidly.ai/incident/TH-2026-0157

---
*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: TH-2026-0157*
*Permalink: https://voidly.ai/incident/TH-2026-0157*