A lawyer who works in matters around trademark disputes, Murdoch joined the board last year. She was against the move to .au, a decision taken by auDA that has caused some disquiet within the organisation.
But the move has had to be put off by at least a year, following the release of a government review that found the current management framework was no longer fit for purpose.
In a statement, Murdoch said she was reluctantly stepping away from the auDA board, due to an expanding workload which meant she did not have the time to address major challenges facing the organisation.
The Doyles ranking matched a growing number of IP matters Murdoch was handling now and she felt she was unable to devote the time needed by the board to address the findings of the government review.
“My time with the board has been memorable and it’s no secret we’ve had healthy discussions around the table over some of the issues auDA faces," Murdoch said.
“I regret that I’m unable to devote the time needed to address these matters and for these reasons feel it’s better if I step aside.”
Disquiet within the organisation's ranks in recent times has seen some members pushing for the ouster of chief executive Cameron Boardman and three directors over the decision to change Australian domains from .com.au and similar suffixes to .au.
Last week, chair Chris Leptos said the practices of several former auDA directors had been referred to the police in Victoria.
According to her LinkedIn page, Murdoch is a member of the Australian Information Security Association, Engineers Australia, the Australian Computer Society and the Intellectual Property Association of Australia and New Zealand.
She is also on the panel of pro bono lawyers for The Arts Law Centre, a 2015 auDA Names panel member and a fellow of the Governance Institute of Australia.
The government review also released its terms of endorsement for auDA and asked it to provide, within 30 days, an implementation plan to demonstrate how it would achieve compliance with these terms by April 2020.
Communications Minister Mitch Fifield said if this was not forthcoming, he would look to appoint some other entity to manage the .au namespace.