Active Incident
Confirmed: censorship detected in Vietnam
Vietnam · May 26, 2025 · 259 days
CenAlert detected interference. Impact: 107.8. Reported by: unknown.
Evidence
0%
Anomaly Rate
1
Measurements
75%
Confidence
What This Means
0% of tests showed anomalies, above the typical 1-3% baseline. This suggests potential network interference.
How We Detected This
Data Sourcecensoredplanet
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score75% certainty of censorship
Detection TimeMay 26, 2025
Corroborating Evidence (11)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
Censored PlanetUniversity of Michigan research11 records
interference
"unknown"— Censored Planet report
Signal value: 0.13
Feb 9, 2026
View source →interference
"unknown"— Censored Planet report
Signal value: 0.27
Feb 9, 2026
View source →interference
"unknown"— Censored Planet report
Signal value: 0.29
Feb 9, 2026
View source →interference
"unknown"— Censored Planet report
Signal value: 0.53
Feb 9, 2026
View source →interference
"unknown"— Censored Planet report
Signal value: 0.80
Feb 9, 2026
View source →+ 6 more Censored Planet records
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. (2025). Confirmed: censorship detected in Vietnam [VN-2025-0002]. Voidly Global Censorship Index. https://voidly.ai/incident/VN-2025-0002