Some good resources here.
https://www.cyber.gov.au/acsc/view-all-content/alerts/optus-…
Optus has suffered a massive data breach, compromising the personal information of up to 9 million customers.
About 2.8 million customers have had all their personal details taken in the cyber attack, including their passport and licence numbers, email and home addresses, dates of birth and telephone numbers.
About 7 million had their dates of birth, email addresses and phone numbers stolen.
The breach involves both current and former customers.
This is worrying.
22/9: Optus’s statement.
Mod 26/9: Whirlpool - Check Optus Customer API
No but they would have access to the CRM so when you call up they can look you up etc. If you have access I imagine it wouldn't be difficult to then scrape customer details from said system with no db access. But who knows at this point.