# Sustained censorship in CU (2026-10)

**Country:** 🇨🇺 Cuba (CU)
**Date:** 2026-10-07
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 9 days of elevated network interference averaging 77.9% anomaly rate.

## Metrics

- Confidence: 75%
- Measurements (stored incident count; not the qualifying evidence count): 9
- Anomaly Rate: 77.9%

## Evidence

- **OONI** (measurement): OONI web_connectivity: 14 anomaly + 45 confirmed / 114 nonfailed measurements (51.8% blocked; 74 failed)
  - Observed: 2026-10-09
  - Confidence: 71%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-09&until=2026-10-10)
- **OONI** (measurement): OONI web_connectivity: 13 anomaly + 44 confirmed / 112 nonfailed measurements (50.9% blocked; 75 failed)
  - Observed: 2026-10-08
  - Confidence: 70%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-08&until=2026-10-09)
- **OONI** (measurement): OONI whatsapp: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-08
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=whatsapp&since=2026-10-08&until=2026-10-09)
- **OONI** (measurement): OONI telegram: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-08
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=telegram&since=2026-10-08&until=2026-10-09)
- **OONI** (measurement): OONI facebook_messenger: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-08
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=facebook_messenger&since=2026-10-08&until=2026-10-09)
- **OONI** (measurement): OONI tor: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-08
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=tor&since=2026-10-08&until=2026-10-09)
- **OONI** (measurement): OONI web_connectivity: 14 anomaly + 51 confirmed / 128 nonfailed measurements (50.8% blocked; 60 failed)
  - Observed: 2026-10-07
  - Confidence: 70%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-07&until=2026-10-08)
- **OONI** (measurement): OONI web_connectivity: 47 anomaly + 71 confirmed / 125 nonfailed measurements (94.4% blocked; 62 failed)
  - Observed: 2026-10-07
  - Confidence: 88%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-07&until=2026-10-08)
- **OONI** (measurement): OONI web_connectivity: 16 anomaly + 44 confirmed / 112 nonfailed measurements (53.6% blocked; 76 failed)
  - Observed: 2026-10-07
  - Confidence: 71%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-07&until=2026-10-08)
- **OONI** (measurement): OONI whatsapp: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-06
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=whatsapp&since=2026-10-06&until=2026-10-07)
- **OONI** (measurement): OONI facebook_messenger: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-06
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=facebook_messenger&since=2026-10-06&until=2026-10-07)
- **OONI** (measurement): OONI tor: 1 anomaly + 0 confirmed / 1 nonfailed measurements (100.0% blocked; 0 failed)
  - Observed: 2026-10-06
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=tor&since=2026-10-06&until=2026-10-07)
- **OONI** (measurement): OONI web_connectivity: 93/98 measurements anomalous (94.9%)
  - Observed: 2026-10-05
  - Confidence: 88%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-05&until=2026-10-06&only=anomalies)
- **OONI** (measurement): OONI web_connectivity: 136/143 measurements anomalous (95.1%)
  - Observed: 2026-10-02
  - Confidence: 88%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=CU&test_name=web_connectivity&since=2026-10-02&until=2026-10-03&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** — 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 CU (2026-10) [CU-2026-0627]. Retrieved from https://voidly.ai/incident/CU-2026-0627

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*Report generated by Voidly Research on 2026-10-15*
*Data licensed under CC BY 4.0*
*Incident ID: CU-2026-0627*
*Permalink: https://voidly.ai/incident/CU-2026-0627*