Can someone from Quickbooks PLEASE let me know if you are actually working with the Greater to fix this!

Latest reply from the Greater:

Statement data is only provided to XERO and MYOB after our customer signs an 'Authority to Disclose Information' form. The statement data is transmitted via secure encrypted links and cannot be accessed by anyone except the customer and (if allowed by the customer)their accountant. This is the most secure way to share data.

Providing your username and password to third parties can actually give them full access to your accounts including the ability to withdraw funds via third party transfer, BPAY and OSKO.
There has been no recent change to our General Banking Terms & Conditions in regards to providing your online banking details to a third party.
As per point 43.1 on page 39, 'You should make sure that no one knows your online banking username and password or Greater Bank app access code including any joint account holder. This is because we will assume anyone with access to your online banking (including through mobile banking or the Greater Bank app) has your authority to use any of the products or services available through online banking.'
If QuickBooks records were fraudulently obtained and a Greater Bank customers accounts were compromised due to a customer providing their online banking details to QuickBooks, our customer would be liable for any of these financial losses.

You can certainly manually upload transactions to Quickbooks after exporting transaction listings from Online Banking as a CSV file. This is the most secure way to import information to Quickbooks.