# Sustained censorship in IR (2022-09)

**Country:** 🇮🇷 Iran (IR)
**Date:** 2022-09-13
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 3 days of elevated network interference averaging 93.0% anomaly rate.

## Metrics

- Confidence: 75%
- Measurements: 3
- Anomaly Rate: 93.0%

## Evidence

- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-30
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-30&until=2022-09-30)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-29
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-29&until=2022-09-29)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-28
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-28&until=2022-09-28)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-27
  - Confidence: 82%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-27&until=2022-09-27)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-26
  - Confidence: 82%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-26&until=2022-09-26)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-25
  - Confidence: 81%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-25&until=2022-09-25)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-24
  - Confidence: 82%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-24&until=2022-09-24)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-23
  - Confidence: 83%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-23&until=2022-09-23)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-22
  - Confidence: 85%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-22&until=2022-09-22)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-21
  - Confidence: 78%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-21&until=2022-09-21)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-20
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-20&until=2022-09-20)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-19
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-19&until=2022-09-19)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-18
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-18&until=2022-09-18)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-17
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-17&until=2022-09-17)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-16
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-16&until=2022-09-16)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-15
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-15&until=2022-09-15)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-14
  - Confidence: 75%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-14&until=2022-09-14)
- **OONI** (measurement): Mahsa Amini protests internet shutdown
  - Observed: 2022-09-13
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&since=2022-09-13&until=2022-09-13)

## 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.
- **Which networks** — no specific ASN/ISP is identified for this incident.
- **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** — this rests on a single source; treat it as a single-source signal, not a multi-source confirmation.

## Data Sources

ooni

## Citation

Voidly Research. (2026). Sustained censorship in IR (2022-09) [IR-2022-0005]. Retrieved from https://voidly.ai/incident/IR-2022-0005

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*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: IR-2022-0005*
*Permalink: https://voidly.ai/incident/IR-2022-0005*