Cybercrime group ShinyHunters leaked the full Odido dataset, the Netherlands is facing the biggest data leak in its history.
Odido is a Dutch telecommunications company and one of the largest mobile network operators in the Netherlands. It was formed when T-Mobile Netherlands and Tele2 were rebranded as Odido in 2023 after private equity firms Apax Partners and Warburg Pincus acquired the business.
Odido serves around 8 million mobile subscribers and about 1 million fixed broadband customers nationwide. The company provides mobile telephony, wireless broadband, and related services under multiple brands including Odido, Ben, and Simpel.
In mid-February, the cybercrime group ShinyHunters broke into the Dutch telecom firm Odido and accessed data from 6.2 million accounts. At the time, the company confirmed the breach and said attackers took names, addresses, phone numbers, email addresses, bank account details, dates of birth, and passport or ID numbers.
“Odido has been hit by a cyberattack, which compromised customer data. This involved personal data from a customer contact system used by Odido. No passwords, call logs, or billing information were affected.” reads a notice published by the company on its website. “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 telco said the breach did not expose My Odido account passwords, call records, location data, invoice details, or scans of ID documents.
Odido’s subsidiary Ben also warned its customers that hackers may have stolen their information.
Now, an alleged final dump has exposed 4.6 million more unique email addresses from Dutch telecom provider Odido, bringing the total to 6.1 million across four separate releases.
“Due to recent developments regarding this telco, daily leaks will not happen anymore. Instead, you can download the Odido dataset concerning its full former and current customers below.” ShinyHunters wrote on its Tor data leak site. “Over 15m Salesforce records containing Full Names, Physical addresses, email addresses, phone numbers, and plaintext passwords, IBAN, passport numbers, driver license numbers and other internal corporate data have been compromised. This is your fault, Odido. You are the reason why an entire country is about to suffer for an unestimated amount of years. Unprecedented.”
The data breach notification service Have I Been Pwned (HIBP) added the compromised dataset to its archive. The final release includes a total of 6.1M unique addresses.
Compromised data includes:
- Bank account numbers
- Customer service comments
- Dates of birth
- Driver’s licenses
- Email addresses
- Genders
- Government issued IDs
- Names
- Passport numbers
- Phone numbers
- Physical addresses
Follow me on Twitter: @securityaffairs and Facebook and Mastodon
(SecurityAffairs – hacking, ShinyHunters)
