The campaign comes after the police raided ABC's Sydney headquarters in June and the residence of a News Corp journalist in Canberra for allegedly leaking secret documents.
On Sunday, the Australian government reiterated it was possible that three journalists may face prosecution in the wake of the raids.
As part of the new campaign, Australia's Right to Know coalition - which was formed in 2007 - conducted research that found 87 per cent of people said they valued a transparent democracy but only 37 per cent believed they were now living in one. "And if the community is denied information about them, then it's going to be in a far less well-informed position to make decisions at election time".
Michael Miller, executive chairman of News Corp Australia, tweeted an image of his blacked-out mastheads which include The Australian and The Daily Telegraph.
"The culture of secrecy that has descended through these legal provisions restricts every Australian's right to know and goes well beyond the original intent of national security", Media Entertainment and Arts Alliance union head Paul Murphy said in a statement.
The unprecedented show of unity by Australian media houses also pointed to preserving the right of a journalist to report what government does not want media houses to publish.
Compared to New Zealand, the United States, the United Kingdom and Canada, Australia's intelligence and national security laws are the "most oppressive", Denis Muller from the University of Melbourne's Centre for Advancing Journalism told SBS News.
Nine's CEO Hugh Marks added that this is "much bigger than the media".
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Opposition leader Anthony Albanese told reporters that while journalists should not be prosecuted for doing their jobs, defamation laws provided a "good constraint on ensuring that there is some level of accuracy".
The media is now calling for legislative changes to protect whistleblowers like Boyle as well as the journalists who endeavour to tell their stories.
More than 60 new laws have been put in place over the past 20 years, which critics say effectively criminalises journalism and penalises whistleblowing.
'Australia is at risk of becoming the world's most secretive democracy, ' ABC managing director David Anderson said.
More information about the media campaign against the government can be found at yourrighttoknow.com.au and on social media under #righttoknow.
"The review will not be an audit into current matters at hand but rather a holistic approach to ensure we have in place investigative policy and guidelines that are fit for objective", Kershaw said.
But without a constitutional protection for freedom of speech in Australia, top editors have grown increasingly concerned that authorities could abuse expansive national security legislation to suppress uncomfortable revelations or pressure media outlets.
"I strongly believe in these two pillars, and this is the approach I intend to take".