As our lives have become increasingly digitised, we routinely allow businesses to have our personal information and track our online activity. It now seems almost equally routine to read that this data has been compromised, whether the result of malicious hackers ( Optus , Qantas ), errors in data handling ( Telstra ) or employees abusing their access to private information ( American Express ).

These breaches have the potential to affect millions of Australians and are part of a growing trend. Abigail Bradshaw, the director-general of the Australian Signals Directorate, said recently the agency responded to 1200 cybersecurity incidents in the latest financial year – up 11 per cent – and notified critical infrastructure entities about potential malicious activity affecting their n

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