On Wednesday 8 November 2023, Optus customers (and customers of Optus network resellers) were impacted by a national whole-of-network outage. The outage interrupted critical services for consumers and businesses. It also impacted essential government, public health and safety infrastructure.

On 9 November 2023 the Australian Government announced that it would undertake a post-incident review into the outage and appointed Mr Richard Bean, former Deputy Chair of the Australian Communications and Media Authority (ACMA) to lead the review.