Multiple Australian outlets report that a large-scale cyber incident involving Origin Energy is leading to public warnings for millions of customers. The coverage states that more than 4.8 million Australians are affected and are being urged to take a specific action in response to the hack. However, the provided excerpts do not detail what the action is, how the issue was discovered, what information was compromised, or whether customers have experienced direct impact such as changes to accounts or payments. The reports also frame the matter as a “scam” connected to the incident, indicating that authorities and Origin are likely advising customers to be alert to potential fraudulent activity following the breach. Taken together, the sources agree on the scale of the warning and the need for customers to follow instructions related to the incident. They do not, in the supplied text, offer further confirmed specifics on timelines, affected data types, or the scope of operational disruption. Readers are directed to follow the guidance associated with the incident from Origin Energy or relevant consumer and cybersecurity authorities.