A list of about 280,000 active email addresses and roughly 20,000 active landline phone numbers have been extracted from iiNet's order management system.

In short:

Australian internet provider iiNet has compromised the email addresses or phone numbers of hundreds of thousands of customers.

A third party gained access to its system after stealing account credentials from an employee, early investigations suggest.

What’s next?

The telco has hired external IT and cybersecurity experts to assist its response.