ABC journalists' ignorance of technology has been on display once again, with senior broadcaster Patricia Karvelas displaying an acute lack of knowledge during an interview with former senator Nick Xenophon, whose legal firm has been hired by Huawei to help correct misconceptions about its operations.

Some members of Parliament proved to be the worst enemies of their own network when they opened the door to malware by visiting an external website that had been compromised, it has been revealed.

An infection of Windows systems by the Emotet malware was the precursor to the recent ransomware attack on Victorian hospitals, the Australian Cyber Security Centre says, as part of a warning that Emotet, which has been around since 2014, is being spread in Australia by malicious emails.