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Medium

Dutch telecom Odido breach exposes data of 6.2 million customers

Odido, the Netherlands' largest telecommunications provider, confirmed a cyber attack that exposed the personal data of more than six million customers.

Key points

  • 6.2 million customers affected.
  • Exposed data includes names, addresses, phone numbers, email addresses, customer numbers, IBANs, dates of birth, and government-issued ID details.
  • No passwords, call records, location data, billing information, or ID document scans were accessed.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Confidentiality impact

Threat source not confirmed

03

Potential impact

Data Exposure

Confidentiality

Published
Feb 20, 2026
Updated
Jun 29, 2026
Confidence
Medium
Evidence
5 sources

Structured assessment

Signal analysis

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch exposure paths that could affect data, operations or third-party trust.

Business impact

Potential data exposure
Impact area
Confidentiality
Likely asset
User or customer data

Mentioned entities

OdidoData DisclosureDutchOdidoNetherlandsExposedIBANs

Quick context

Questions about this signal

What happened in this signal?

Odido, the Netherlands' largest telecommunications provider, confirmed a cyber attack that exposed the personal data of more than six million customers. The company detected the incident on February 7, 2026, and launched an investigation with the support of external cyber forensics specialists. The breach affected a customer contact system.

When was this signal reported?

Shadow Tier lists Feb 20, 2026 as the signal date.

Which organization is connected to this signal?

Odido is the organization connected to this public signal.

Explore Odido
Which impact area is relevant?

This signal is connected to data exposure and breach intelligence based on its reported consequences.

Explore data exposure and breach intelligence