Australia on Thursday established an investigation into potential foreign political interference through social media platforms such as Facebook, Twitter and WeChat.
The review comes amid heightened Australian concerns that China is seeking to interfere in Canberra's affairs, and after US intelligence analysts found Russia had used social media to try and influence the outcome of the 2016 US presidential election.
The bipartisan parliamentary Senate select committee was established after the ruling coalition government backed the opposition Labor Party's proposal.
"The rise of 'fake news' and misinformation campaigns present a very real and present danger to democracy not only in Australia, but across the globe," Labor lawmaker Penny Wong said.
"We must protect our democracy from malicious foreign actors."
The investigation will need to report its findings by May 2022, around the time Australia will hold its next general election.
No specific national threat was mentioned, but activity suspected to have been undertaken by China has come under increasing scrutiny in Australia in recent years.
China denies seeking to sway Australia, accusing the government of adopting a "Cold War mentality".
Citing China directly, then Australian Prime Minister Malcolm Turnbull in 2017 introduced new laws that required lobbyists working for foreign countries to register.
The legislation soured bilateral relations with China, by far Australia's largest trading partner.
In September, Reuters reported Australian intelligence determined China was responsible for a cyber-attack on its national parliament and three largest political parties. China denied it was responsible and the Australian government did not comment.
Last month, Australia's domestic spy agency said it was investigating whether China tried to install an agent in federal parliament in what Prime Minister Scott Morrison called "deeply disturbing" allegations aired in Australian media.
Amid a spate of cyber-attacks on its universities, Australia also last month required higher education facilities to declare financial dealings with foreign universities.
Australia to probe foreign interference through social media platforms