AUSTRALIA will join China in implementing mandatory censoring of the internet under plans put forward by the Federal Government.
The revelations emerge as US tech giants Google, Microsoft and Yahoo, and a coalition of human rights and other groups unveiled a code of conduct aimed at safeguarding online freedom of speech and privacy.
The government has declared it will not let internet users opt out of the proposed national internet filter.
The plan was first created as a way to combat child pronography and adult content, but could be extended to include controversial websites on euthanasia or anorexia.
Communications minister Stephen Conroy revealed the mandatory censorship to the Senate estimates committee as the Global Network Initiative, bringing together leading companies, human rights organisations, academics and investors, committed the technology firms to "protect the freedom of expression and privacy rights of their users".
Mr Conroy said trials were yet to be carried out, but "we are talking about mandatory blocking, where possible, of illegal material."
The net nanny proposal was originally going to allow Australians who wanted uncensored access to the web the option of contacting their internet service provider to be excluded from the service.
Human Rights Watch has condemned internet censorship, and argued to the US Senate "there is a real danger of a Virtual Curtain dividing the internet, much as the Iron Curtain did during the Cold War, because some governments fear the potential of the internet, (and) want to control it"
Groups including the
System Administrators Guild of Australia and
Electronic Frontiers Australia have attacked the proposal, saying it would unfairly restrict Australians' access to the web, slow internet speeds and raise the price of internet access.
EFA board member Colin Jacobs said it would have little effect on illegal internet content, including child pornography, as it would not cover file-sharing networks.