Unfortunately, this is not true. An NDA is not a free pass to being able to censor whatever you want, even if the person signing the NDA took a fee, or received payment.
"NDAs do not prohibit people from reporting suspected corrupt conduct to an appropriate authority. The Crime and Corruption Act 2001 and the Public Interest Disclosure Act 2010 provide safeguards that allow people who have signed an NDA to report suspected wrongdoing, including corrupt conduct, maladministration and the misuse of public resources.
Under no circumstances do they oblige people who have signed them to maintain secrecy about suspected wrongdoing. You can still report suspected wrongdoing despite signing an NDA."
"NDAs do not prohibit people from reporting suspected corrupt conduct to an appropriate authority. The Crime and Corruption Act 2001 and the Public Interest Disclosure Act 2010 provide safeguards that allow people who have signed an NDA to report suspected wrongdoing, including corrupt conduct, maladministration and the misuse of public resources.
Under no circumstances do they oblige people who have signed them to maintain secrecy about suspected wrongdoing. You can still report suspected wrongdoing despite signing an NDA."
[1] https://www.ccc.qld.gov.au/sites/default/files/Docs/Publicat...