# Sustained censorship in LY (2026-04)

**Country:** 🇱🇾 Libya (LY)
**Date:** 2026-04-11
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 43 days of elevated network interference averaging 68.3% anomaly rate.

## Metrics

- Confidence: 77%
- Measurements: 43
- Anomaly Rate: 68.3%

## Evidence

- **OONI** (measurement): OONI http_header_field_manipulation: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-04-30
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=http_header_field_manipulation&since=2026-04-30&until=2026-04-30&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-30
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-30&until=2026-04-30&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-30
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-30&until=2026-04-30&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-30
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-30&until=2026-04-30&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-28
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-28&until=2026-04-28&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-28
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-28&until=2026-04-28&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-28
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-28&until=2026-04-28&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-04-27
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-27&until=2026-04-27&only=anomalies)
- **OONI** (measurement): OONI telegram: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-04-27
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-27&until=2026-04-27&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-04-27
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-27&until=2026-04-27&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-26&until=2026-04-26&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-26&until=2026-04-26&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-26&until=2026-04-26&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-24
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-24&until=2026-04-24&only=anomalies)
- **OONI** (measurement): OONI signal: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-21
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=signal&since=2026-04-21&until=2026-04-21&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-21
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-21&until=2026-04-21&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-21
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-21&until=2026-04-21&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/10 measurements anomalous (50.0%)
  - Observed: 2026-04-21
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-21&until=2026-04-21&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-20
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-20&until=2026-04-20&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 6/8 measurements anomalous (75.0%)
  - Observed: 2026-04-20
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-20&until=2026-04-20&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/8 measurements anomalous (62.5%)
  - Observed: 2026-04-20
  - Confidence: 75%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-20&until=2026-04-20&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/8 measurements anomalous (62.5%)
  - Observed: 2026-04-20
  - Confidence: 75%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-20&until=2026-04-20&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-19
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-19&until=2026-04-19&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 4/7 measurements anomalous (57.1%)
  - Observed: 2026-04-19
  - Confidence: 73%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-19&until=2026-04-19&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-16&until=2026-04-16&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-16&until=2026-04-16&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-04-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-16&until=2026-04-16&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 5/7 measurements anomalous (71.4%)
  - Observed: 2026-04-15
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-15&until=2026-04-15&only=anomalies)
- **OONI** (measurement): OONI telegram: 5/7 measurements anomalous (71.4%)
  - Observed: 2026-04-15
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-15&until=2026-04-15&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 5/7 measurements anomalous (71.4%)
  - Observed: 2026-04-15
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-15&until=2026-04-15&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-04-14
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI telegram: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-04-14
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-04-14
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-14
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI telegram: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-14
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-14
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-14&until=2026-04-14&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-13
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-13&until=2026-04-13&only=anomalies)
- **OONI** (measurement): OONI telegram: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-13
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-13&until=2026-04-13&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-13
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-13&until=2026-04-13&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 2/4 measurements anomalous (50.0%)
  - Observed: 2026-04-12
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-12&until=2026-04-12&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-11
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=whatsapp&since=2026-04-11&until=2026-04-11&only=anomalies)
- **OONI** (measurement): OONI telegram: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-11
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=telegram&since=2026-04-11&until=2026-04-11&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-04-11
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LY&test_name=facebook_messenger&since=2026-04-11&until=2026-04-11&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.
- **The mechanism** — we cannot state whether this was DNS tampering, TLS/SNI reset, HTTP blockpage, throttling, or an infrastructure outage.
- **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 LY (2026-04) [LY-2026-0156]. Retrieved from https://voidly.ai/incident/LY-2026-0156

---
*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: LY-2026-0156*
*Permalink: https://voidly.ai/incident/LY-2026-0156*