Active Incident
Confirmed: sustained censorship in Sudan (2026-02)
Sudan · February 23, 2026 · Ongoing
OONI detected 3 days of elevated network interference averaging 100.0% anomaly rate.
Evidence
100%
Anomaly Rate
3
Measurements
77%
Confidence
What This Means
100% of 3 network tests from Sudan failed to reach these services. Global baseline failure rate is typically 1-3%. This 97+ percentage point difference strongly indicates intentional blocking.
How We Detected This
Data Sourceooni
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score77% certainty of censorship
Detection TimeFebruary 23, 2026
Corroborating Evidence (3)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference3 records
blocking
"OONI telegram: 1/1 measurements anomalous (100.0%)"— OONI report
Signal value: 1.00
Feb 23, 2026
View source →tor-blocking
"OONI tor: 1/1 measurements anomalous (100.0%)"— OONI report
Signal value: 1.00
Feb 23, 2026
View source →blocking
"OONI whatsapp: 1/1 measurements anomalous (100.0%)"— OONI report
Signal value: 1.00
Feb 23, 2026
View source →Affected Services (3)
TelegramTorWhatsApp
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.
- A confirmed duration — we report the observation window, not a verified start/stop of any block.
- 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: sustained censorship in Sudan (2026-02) [SD-2026-0029]. Voidly Global Censorship Index. https://voidly.ai/incident/SD-2026-0029