The gas supply and distribution company based in Perth of Australia, believes that the infringement held in 2014 in one system third party partner. However, as it has become known, this system is no longer used.
"It simply came to our notice then leakage was recently detected by Kleenheat during a regular security check and did not occur in its internal systems, "the company said in a statement. e-mail sent to inform its customers.
Kleenheat referred to data running possible risk as "general contact details", confirming that names, home address and email address were included. However, he did not provide telephone numbers, date of birth or bank details, credit card information and account details as part of the breach.
"Once we identified the problem, we moved quickly to secure the information and did not find any malicious activity related to them ", added Kleenheat.
"Rest assured that we will continue to monitor for possible suspicious activity on our systems." The company stated that it has contacted the competent authorities and has reported the incident to Office of the Australian Information Commissioner.