She was born in 1954 and grew up in Brisbane, Queensland where she attended the University of Queensland. In 1975, she was a cofounder of community radio station4ZZZ-FM. "I grew up quite some time ago in Queensland when it was run by what was later found to be an incredibly corrupt government -- the government of Joh Bjelke-Petersen," she told journalism students in 2015. "I think my interest in journalism stemmed from there because I had set up a student radio station, and set up a newsroom. We were actually trying to as young students go and look at things like police corruption, go and look at things like political corruption, which was rife already in the state. I think that desire to actually expose wrong-doing really motivated me."
Career
In the 1980s, Wilkinson joined the staff of the National Times, which was edited by Brian Toohey and saw her work alongside reporters like David Marr, Colleen Ryan and Wendy Bacon. The paper at the time had a heavy investigative focus, particularly with regards to politics and crime. Wilkinson became the National Times' Washington Correspondent, and from there joined the ABC, where she started working on the network's flagship current affairs program. Four Corners. In 1989, True Believers, a report done with Monica Attard on the dumping of federal Liberal leaderJohn Howard by the Liberal Party in favour of Andrew Peacock, won both a Walkley and a Logie. Later that year, she joined The Sydney Morning Herald, though she rejoined Four Corners less than a year later in the role of executive producer. In 1995, Wilkinson was a reporter for The Australian. By 2000, she was a senior editor at Fairfax's Sydney Morning Herald. In 2002, she moved back to writing duties, being appointed the Washington correspondent for the paper, also filing for sister title The Age. She returned to Sydney in 2005, becoming the Sydney Morning Herald's national security editor. In 2009, when the paper's environment editor, she won the Eureka Prize for Environmental Journalism for The Tipping Point, a report on the melting of the arctic sea ice. In 2010, Wilkinson rejoined Four Corners. In 2016, she was nominated for a Walkley Award for her work as the ABC's lead reporter on the Panama Papers. She is the aunt of Cassandra Wilkinson who is a co-founder of FBi FM Sydney.