A critical technical failure during a network upgrade at Optus, Australia’s second-largest telecommunications provider, has resulted in the tragic deaths of three individuals. The incident, which occurred on Thursday, disrupted emergency call services, leaving hundreds of customers in South Australia, Western Australia, and the Northern Territory unable to connect with emergency services. During welfare checks, authorities discovered three fatalities in households where attempts to make emergency triple zero (“000”) calls had failed. Optus CEO Stephen Rue expressed profound regret and offered heartfelt condolences to the affected families during a press conference on Friday. Rue emphasized that the company is conducting a thorough investigation into the failure and will publicly disclose the findings once completed. This incident follows a series of setbacks for Optus, including a $12 million fine for a nationwide outage in 2023 and a significant cyberattack in 2022 that compromised the data of nearly 9.5 million Australians. Rue, who assumed leadership in November 2024, vowed to address the systemic issues and restore public trust in the company.