Crikey! We are not even safe from Big Tech here in Australia.
Facebook offered "advanced matching" as part of their so-called Custom Audience feature to both the conservative (if not confusingly named) Liberal Party, as well as the "democratic socialist" Labor Party. The tool promised to allow the parties to compare data they had collected about voters - such as names, birth dates, phone numbers, postcodes and email addresses - and match that information to Facebook profiles.
The combination of data sets would then allow political parties to target Australian swing voters with custom tailored ads over Facebook, which advertised a 17% increase in matching rates using a beta version of the service provided to the Liberal Party.
Fairfax Media reports that while the conservative Liberal Party turned Facebook down over concerns that sending voter data overseas to Facebook servers would violate the Privacy Act and the Electoral Act, the Labor Party took Facebook up on their offer.