# Censorship detected in IR

**Country:** 🇮🇷 Iran (IR)
**Date:** 2026-08-27
**Type:** Censorship
**Severity:** CRITICAL
**Status:** suspected

## Summary

None

## Metrics

- Confidence: 90%
- Measurements (stored incident count; not the qualifying evidence count): 16
- Anomaly Rate: 100.0%

## Evidence

- **OONI** (measurement): OONI signal: 21/23 measurements anomalous (91.3%)
  - Observed: 2026-08-27
  - Confidence: 87%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 17/20 measurements anomalous (85.0%)
  - Observed: 2026-08-27
  - Confidence: 84%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI telegram: 22/25 measurements anomalous (88.0%)
  - Observed: 2026-08-27
  - Confidence: 85%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 18/24 measurements anomalous (75.0%)
  - Observed: 2026-08-27
  - Confidence: 80%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI signal: 25/31 measurements anomalous (80.6%)
  - Observed: 2026-08-27
  - Confidence: 82%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 22/28 measurements anomalous (78.6%)
  - Observed: 2026-08-27
  - Confidence: 81%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI telegram: 26/32 measurements anomalous (81.2%)
  - Observed: 2026-08-27
  - Confidence: 82%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 23/31 measurements anomalous (74.2%)
  - Observed: 2026-08-27
  - Confidence: 80%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI signal: 23/27 measurements anomalous (85.2%)
  - Observed: 2026-08-27
  - Confidence: 84%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 21/25 measurements anomalous (84.0%)
  - Observed: 2026-08-27
  - Confidence: 84%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI telegram: 24/28 measurements anomalous (85.7%)
  - Observed: 2026-08-27
  - Confidence: 84%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 21/28 measurements anomalous (75.0%)
  - Observed: 2026-08-27
  - Confidence: 80%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI signal: 27/27 measurements anomalous (100.0%)
  - Observed: 2026-08-27
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 23/23 measurements anomalous (100.0%)
  - Observed: 2026-08-27
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI telegram: 27/27 measurements anomalous (100.0%)
  - Observed: 2026-08-27
  - Confidence: 90%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-27&until=2026-08-28&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 24/27 measurements anomalous (88.9%)
  - Observed: 2026-08-27
  - Confidence: 86%
  - [OONI Explorer filtered results (not one measurement)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-27&until=2026-08-28&only=anomalies)
- **CENSOREDPLANET** (http-probe): HTTP blocking (tcp-reset): 3/5 probes blocked (60.0%) for signal.org
  - Observed: 2026-08-27
  - Confidence: 83%
  - [Censored Planet data portal (not one measurement)](https://data.censoredplanet.org)

## What we cannot say

- **Who caused it** — measurement data alone does not attribute the interference to any government, ISP, or other actor.
- **Intent** — anomalous or unreachable measurements indicate interference, not a stated motive or a deliberate-vs-incidental determination.
- **The mechanism** — we cannot state whether this was DNS tampering, TLS/SNI reset, 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** — multiple qualifying evidence source labels do not establish target/time agreement or source independence.

## Data Sources

censoredplanet, ooni

These source labels come from qualifying linked evidence. Historical incident source labels and quarantined observations are excluded; multiple labels alone do not establish independent corroboration.

## Citation

Voidly Research. (2026). Censorship detected in IR [IR-2026-2400]. Retrieved from https://voidly.ai/incident/IR-2026-2400

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*Report generated by Voidly Research on 2026-10-22*
*Data licensed under CC BY 4.0*
*Incident ID: IR-2026-2400*
*Permalink: https://voidly.ai/incident/IR-2026-2400*