Active Incident
Confirmed: censorship detected in Cuba
Cuba · August 1, 2026 · 23 hours
Evidence
67%
Anomaly Rate
1
Measurements
77%
Confidence
What This Means
67% of 1 network tests from Cuba failed to reach these services. Global baseline failure rate is typically 1-3%. This 64+ percentage point difference strongly indicates intentional blocking.
How We Detected This
Data Sourceooni
ML ModelGradientBoosting v3.3 (LOCO mean F1 0.711, honest across 131 countries)
Confidence Score77% certainty of censorship
Detection TimeAugust 1, 2026
Corroborating Evidence (1)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference1 record
blocking
"OONI facebook_messenger: 2/3 measurements anomalous (66.7%)"— OONI report
Signal value: 0.67
Aug 1, 2026
View source →Affected Services (1)
Facebook Messenger
What we cannot say
- Who caused it — measurement data alone does not attribute this 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, an 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.
Cite This Incident
Voidly Research. (2026). Confirmed: censorship detected in Cuba [CU-2026-0576]. Voidly Global Censorship Index. https://voidly.ai/incident/CU-2026-0576
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