Active Incident
Confirmed: sustained censorship in Syria (2026-05)
Syria · May 3, 2026 · 23 days
OONI detected 11 days of elevated network interference averaging 65.2% anomaly rate.
Evidence
65%
Anomaly Rate
11
Measurements
77%
Confidence
What This Means
65% of 11 network tests from Syria failed to reach these services. Global baseline failure rate is typically 1-3%. This 62+ 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 TimeMay 3, 2026
Corroborating Evidence (11)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference11 records
blocking
"OONI facebook_messenger: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 26, 2026
View source →middlebox-detection
"OONI http_invalid_request_line: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 18, 2026
View source →blocking
"OONI whatsapp: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 17, 2026
View source →blocking
"OONI facebook_messenger: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 17, 2026
View source →blocking
"OONI signal: 2/4 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 16, 2026
View source →+ 6 more OONI records
Affected Services (4)
Facebook MessengerSignalTelegramWhatsApp
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: sustained censorship in Syria (2026-05) [SY-2026-0104]. Voidly Global Censorship Index. https://voidly.ai/incident/SY-2026-0104