Internet outage in Brazil

Active Incident

Brazil · September 3, 2026 · Ongoing

IODA detected significant connectivity drop in Brazil. 1 critical alerts recorded.

Evidence

24%

Anomaly Rate

1

Measurements

65%

Confidence

24% of tests showed anomalies, above the typical 1-3% baseline. This suggests potential network interference.

Data Sourceioda

ML ModelGradientBoosting v3.3 (LOCO mean F1 0.71, 0.63 on the countries with n≥30)

Confidence Score65% certainty of censorship

Detection TimeSeptember 3, 2026

Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.

IODAInternet Outage Detection & Analysis2 records

outage

"IODA detected critical level outage for Rio de Janeiro"— IODA report

Signal value: 0.02

Sep 3, 2026

outage

"IODA detected critical level outage for Amapá"— IODA report

Signal value: 0.24

Sep 3, 2026

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.

Voidly Research. (2026). Internet outage in Brazil [BR-2026-0053]. Voidly Global Censorship Index. https://voidly.ai/incident/BR-2026-0053