The Latest Breaking News from Optus

Here's your TL;DR for today's news.

Optus fears data on up to 9.8 million of its customers has been accessed in a sophisticated cyberattack – including, for some customers, passport and drivers licence details, as well as phone numbers, dates of birth and email addresses.

Optus still doesn't know whether hackers who stole the data of up to 9.8 million of its users were private criminals or state-sponsored.

More than nine million Optus customers have had their personal data breached.

Follow live

Friday: Personal information of potentially millions compromised as Australia’s second-largest telco suffers massive data breach. Plus: Qantas passenger’s three-month wait for lost bag

The federal opposition says a major cyber attack which may have placed customer's private information at risk is a dramatic wake-up call for the government.

More than 24 hours after Optus alerted the media of a massive cyber attack that exposed people's personal details, customers have been contacted by the telco.

Telecommunications giant Optus has admitted to a massive data breach that may have exposed the personal data of millions of their customers.