Ends investigation related to 2015 claims by a hacker that they had obtained a customer database of the iiNet subsidiary The Office of the Australian Information Commissioner has finalised its investigation into an allegations of a data breach in 2015 that involved iiNet subsidiary Westnet. A hacker claimed in June 2015 that they had obtained a Westnet customer database that included personal details of the ISP’s customers, including usernames, addresses, phone numbers and, in some cases, password data.