---
title: "Data breach at Agence nationale des fréquences (ANFR)"
description: "The French national frequency agency (ANFR) detected a security incident on its Radiomaritime online service on 13 April 2026. The unauthorised access reportedly took place between 4 and 10 April 2026, and the agency then referred to about 330,000 users affected. A second, smaller incident was detec"
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-10-06-agence-nationale-des-frequences-anfr
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-06
dateModified: 2026-10-06
---
# Agence nationale des fréquences (ANFR)

Data breach — High

The French national frequency agency (ANFR) detected a security incident on its Radiomaritime online service on 13 April 2026. The unauthorised access reportedly took place between 4 and 10 April 2026, and the agency then referred to about 330,000 users affected. A second, smaller incident was detected on 12 May 2026. On 5 October 2026, a file of 406,053 records attributed to ANFR appeared on a cybercriminal forum; it is not established that this figure corresponds to as many distinct individuals.

These complete contact details allow a malicious third party to craft credible fraudulent calls, texts or emails impersonating ANFR or another public body.

| Fact | Value |
| --- | --- |
| Disclosed on | October 6, 2026 |
| Incident dated | April 4, 2026 |
| Accounts affected | 330,000 |
| Sector | Public sector |
| Country | France |
| Cause | Undisclosed |
| Severity | High |
| Status | Reported |

## Exposed data

- Full name
- Postal address
- Phone number
- Email address
- Date of birth
- Customer ID

## What you can do

- Expect phishing attempts quoting your name and this company. A message that knows your details is not legitimate for that reason.
- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [Agence nationale des fréquences (ANFR)](https://frenchbreaches.com/alertes/agence-nationale-des-fr-quences-anfr-mod3706u7p85pi7xpe3) — FrenchBreaches

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

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