Major Data Breach at Dutch Telecom Odido Affects Over 6 Million Customers

Dutch telecommunications provider Odido has disclosed a significant data breach impacting the personal information of approximately 6.2 million customers. The breach, which occurred on February 7-8, 2026, involved unauthorized access to a customer contact system, leading to the extraction of sensitive data. This incident affects both current and former customers of Odido and its subsidiary, Ben NL. The compromised information includes names, addresses, phone numbers, email addresses, dates of birth, bank account numbers, and identification details such as passport and driver’s license numbers.

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Odido has reported that its core services, including mobile, internet, and television operations, remain unaffected by the breach. The company acted swiftly to terminate unauthorized access and has engaged external cybersecurity experts to enhance security measures. Odido has also notified the Dutch Data Protection Authority (Autoriteit Persoonsgegevens) about the incident and is directly informing affected customers via email and phone.

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The breach is characterized as a classic case of social engineering, potentially involving employees from foreign call centers utilized by Odido. The company has not disclosed the identity of the threat actors, and no specific group has claimed responsibility for the attack. However, the nature of the breach aligns with a broader trend of cyberattacks targeting telecommunications companies, which are often seen as high-value targets due to the sensitive data they manage.

Dutch telco Odido suffers data breach exposing data of 6.2 million customers

While Odido has clarified that no passwords, call logs, or billing information were compromised, the exposure of personal data raises significant concerns regarding potential fraud and identity theft. The combination of names, phone numbers, and identification details could facilitate SIM-swap attacks and phishing scams. Odido has advised customers to remain vigilant against suspicious communications and to monitor their accounts closely for unusual activity.

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Under the EU's General Data Protection Regulation (GDPR), Odido is required to report qualifying breaches to the national regulator and notify affected individuals promptly. The company may face scrutiny regarding its access controls and data protection practices, with potential administrative fines for serious violations. The incident underscores the importance of robust cybersecurity measures in the telecommunications sector, particularly in light of increasing cyber threats.

Dutch Carrier Odido Reports Data Breach Affecting Millions

Odido has stated, “The unauthorized access to the system was terminated as quickly as possible. Odido also engaged external cybersecurity experts to assist with implementing additional security measures as part of the incident response.” The company emphasized that it continues to monitor for signs of data misuse and has urged customers to be cautious of unsolicited communications.

Odido confirms massive breach; 6.2 Million customers impacted

As Odido works to contain the breach and enhance its security protocols, the focus will also be on how quickly scammers may attempt to exploit the stolen data. The incident serves as a critical reminder of the vulnerabilities within the telecommunications industry and the need for ongoing vigilance in protecting customer information. Affected customers are encouraged to follow official guidance and remain alert to potential fraud attempts in the coming weeks.

Dutch telco Odido suffers data breach exposing data of 6.2 million customers