Optus has launched an independent, external review of the circumstances surrounding the mass cyber attack on its customer's data.
Embattled chief executive Kelly Bayer Rosmarin, who has been criticised for the way Optus has handled the attack, recommended the review to the board which unanimously agreed to it.
Ms Bayer Rosmarin said the telco was committed to rebuilding trust with its customers and the review would assist that process.