# Censorship detected in IR

**Country:** 🇮🇷 Iran (IR)
**Date:** 2026-05-28
**Type:** Censorship
**Severity:** CRITICAL
**Status:** suspected

## Summary

None

## Metrics

- Confidence: 90%
- Measurements: 16
- Anomaly Rate: 100.0%

## Evidence

- **OONI** (measurement): OONI signal: 28/30 measurements anomalous (93.3%)
  - Observed: 2026-05-28
  - Confidence: 87%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 33/35 measurements anomalous (94.3%)
  - Observed: 2026-05-28
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI telegram: 30/32 measurements anomalous (93.8%)
  - Observed: 2026-05-28
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 19/29 measurements anomalous (65.5%)
  - Observed: 2026-05-28
  - Confidence: 76%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI signal: 49/51 measurements anomalous (96.1%)
  - Observed: 2026-05-28
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 53/54 measurements anomalous (98.1%)
  - Observed: 2026-05-28
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI telegram: 52/52 measurements anomalous (100.0%)
  - Observed: 2026-05-28
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 37/55 measurements anomalous (67.3%)
  - Observed: 2026-05-28
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI signal: 48/48 measurements anomalous (100.0%)
  - Observed: 2026-05-28
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 45/47 measurements anomalous (95.7%)
  - Observed: 2026-05-28
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI telegram: 51/53 measurements anomalous (96.2%)
  - Observed: 2026-05-28
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 40/48 measurements anomalous (83.3%)
  - Observed: 2026-05-28
  - Confidence: 83%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI signal: 32/33 measurements anomalous (97.0%)
  - Observed: 2026-05-28
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 30/33 measurements anomalous (90.9%)
  - Observed: 2026-05-28
  - Confidence: 86%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI telegram: 31/34 measurements anomalous (91.2%)
  - Observed: 2026-05-28
  - Confidence: 86%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 25/34 measurements anomalous (73.5%)
  - Observed: 2026-05-28
  - Confidence: 79%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies)

## 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). Censorship detected in IR [IR-2026-2268]. Retrieved from https://voidly.ai/incident/IR-2026-2268

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*Report generated by Voidly Research on 2026-08-05*
*Data licensed under CC BY 4.0*
*Incident ID: IR-2026-2268*
*Permalink: https://voidly.ai/incident/IR-2026-2268*