Active Incident
Confirmed: internet outage in Cambodia
Cambodia · May 3, 2026 · Ongoing
IODA detected significant connectivity drop in Cambodia. 7 critical alerts recorded. CenAlert confirms censorship activity.
Evidence
70%
Anomaly Rate
7
Measurements
70%
Confidence
What This Means
70% of 7 network tests from Cambodia failed to reach these services. Global baseline failure rate is typically 1-3%. This 67+ percentage point difference strongly indicates intentional blocking.
How We Detected This
Data Sourceioda + censoredplanet
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score70% certainty of censorship
Detection TimeMay 3, 2026
Corroborating Evidence (10)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
IODAInternet Outage Detection & Analysis7 records
outage
"IODA detected critical level outage for Bântéay Méanchey"— IODA report
Signal value: 0.71
May 3, 2026
View source →outage
"IODA detected critical level outage for Krong Preah Sihanouk"— IODA report
Signal value: 0.71
May 3, 2026
View source →outage
"IODA detected critical level outage for Svay Rieng"— IODA report
Signal value: 0.76
May 3, 2026
View source →outage
"IODA detected critical level outage for Phnom Penh"— IODA report
Signal value: 0.63
May 3, 2026
View source →outage
"IODA detected critical level outage for Takêv"— IODA report
Signal value: 0.69
May 3, 2026
View source →+ 2 more IODA records
Censored PlanetUniversity of Michigan research3 records
http-blocking-tcp-reset
"HTTPS blocking (tcp-reset): 13/21 probes blocked (61.9%) for signal.org"— Censored Planet report
Signal value: 0.62
May 3, 2026
View source →http-blocking-tcp-reset
"HTTPS blocking (tcp-reset): 13/21 probes blocked (61.9%) for telegram.org"— Censored Planet report
Signal value: 0.62
May 3, 2026
View source →http-blocking-tcp-reset
"HTTPS blocking (tcp-reset): 13/21 probes blocked (61.9%) for whatsapp.com"— Censored Planet report
Signal value: 0.62
May 3, 2026
View source →Affected Services (3)
SignalTelegramWhatsApp
Blocked Domains (3)
Click any domain to view raw OONI measurements
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.
Cite This Incident
Voidly Research. (2026). Confirmed: internet outage in Cambodia [KH-2026-0039]. Voidly Global Censorship Index. https://voidly.ai/incident/KH-2026-0039