Is Open Banking safe and secure?
Safety and security of your data and your money is our primary concern. Open Banking gives you complete control of how you want to choose to share your information.
Data will only be shared with accredited third parties once you have authorised it. After you’ve authorised a third party to access your data, you can revoke that access at any time and ask for your data to be deleted.
Any party sending or receiving data under Open Banking must meet particular obligations by the Australian Competition and Consumer Commission (ACCC) and the Australian Information Commissioner (OAIC), both of which have strict accreditation criteria when it comes to privacy and accessing and storing data.
Don’t need to be accredited to send data (data holder) but do have to meet CDR obligations.
https://www.beyondbank.com.au/need-help/is-open-banking-safe-and-secure