The highly sensitive information of millions of Australians — including logins for personal Australian Tax Office accounts, medical and personal data of thousands of NDIS recipients, and confidential details of an alleged assault of a Victorian school student by their teacher — is among terabytes of hacked data being openly traded online. Key points: ABC Investigations can reveal confidential documents about private school students and NDIS participants were published without their knowledge ABC Investigations can reveal confidential documents about private school students and NDIS participants were published without their knowledge Included for sale or ransom were legal contracts and remote…