"We have notified the Office of the Australian Information Commissioner of this incident, and we are in the process of contacting law enforcement bodies", the CEO of Nova Entertainment, Cathy O'Connor, said in a statement.
According to the company, client information from May 2009 to October 2011 had been leaked.
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The data may include names, gender, dates of birth, addresses, emails and phone numbers and account details such as usernames and passwords. O'Connor added, however, that no other data, including copies of identity documentation or financial information, had been compromised.
Nova entertainment is an Australian company that operates commercial radio networks, TV stations and mobile brands, owned by Illyria Nominees Television, a private investment company of Lachlan Murdoch.
