The Optus outage, caused by a company system-upgrade failure, is advance notice of the danger of even bigger disruptions from hostile cyber-attacks. Warnings of Australia’s lack of preparedness have come from the Australian Signals Directorate (ASD), the Australian Securities and Investments Commission (ASIC) and the Australian Prudential Regulation Authority (APRA).
Optus’ 14-hour failure hit millions of its customers, businesses, health facilities and public utilities including Mel…
