Update: ABC News is now reporting that a teenager was responsible for publishing the information on a public website, not a hacker as first thought.

A paging service run by Vodafone has been linked to a data breach in Western Australia, with messages including private health information published on a now-closed website.

Channel 9 News first reported the data breach yesterday, saying it had discovered a public website on which hackers had published numerous messages containing sensitive information including doctor and patient names, addresses, phone numbers and health concerns.