KPN, one of the largest ISPs in Netherlands was hacked and has suspended its email services after a group of hackers posted the details of more than 500 customers on the internet, including usernames, passwords, phone numbers and addresses. The attack took place by the end of January and the company, in collaboration with law enforcement and the Dutch Government decided to maintain secrecy in order to allow officials to investigate into the matter. KPN provides service to more than 2 million Dutch Internet users and currently, the customers of KPN are allowed to send outbound email, but have disabled access to customer mailboxes while they are working to secure the server infrastructure.
Naked Security Sophos
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