Pirates are peddling Trojan-infected Adobe software, warned the Australian Federal Police.
It followed a raid on a South Australian home today where police seized more than 200 copies of allegedly pirated software.
Police said the pirate Adobe software had a Trojan capable of "stealing personal information".
A 40-year-old woman was charged with offences under the Copyright Act and faced five years imprisonment.
“One study of intellectual property crime estimated that one in five Australian households had knowingly purchased pirated computer or video goods,” AFP commander of crime operations Peter Sykora said in a statement.
“This case highlights that the money you save from purchasing a cheaper, counterfeit product may come at a high cost to your privacy. Identity theft could place your personal and financial information in the hands of organised criminals.”
The woman will be summonsed to appear in court at a later date.
The cost of piracy to the Australian economy varies widely. A recent and controversial study placed the figure at some $900 million a year.