SYDNEY: US technology giant Google went on the offensive Monday against an Australian plan forcing digital giants to pay for news content, telling users their personal data would be "at risk". Australia announced last month that firms such as Google and Facebook would have to pay news media for content, after 18 months of negotiations ended without agreement.

The landmark measures would include fines worth millions of dollars for non-compliance and force transparency around the closely guarded algorithms firms use to rank content. Google is now fighting a rearguard action to prevent the measures from entering into force - and been accused by Australia of spreading "misinformation" in the process.

On Monday it told users in a new homepage pop-up that "the way Aussies use Google is at risk" and their search experience "will be hurt" by the changes. The technology titan linked to an open letter claiming it would be forced to hand over users' search data to news media companies and give them information that would "help them artificially inflate their ranking" above other websites.

Google says it already partners with Australian news media by paying them millions of dollars and sending billions of clicks each year, suggesting the changes could put its free services "at risk". "But rather than encouraging these types of partnerships, the law is set up to give big media companies special treatment and to encourage them to make enormous and unreasonable demands that would put our free services at risk," the letter states.