Major Australian Health Insurer Disables Systems in Response to Cyberattack

One of Australia’s largest private health insurers has suffered a cyberattack just a week after telecommunications giant Optus was spurred into damage control after the data of millions of customers was leaked.
The Medibank Group, which services around 3.9 million customers, revealed on Oct. 13 that a day earlier, it detected unusual activity on its network.
“In response to this event, Medibank took immediate steps to contain the incident, and engaged specialised cyber security firms,” the company said in a statement (pdf). “At this stage, there is no evidence that any sensitive data, including customer data, has been accessed.”
Medibank said the company isolated and removed access to customer-facing systems to reduce the possibility of damage….