Well, if you want to go to that extreme, probably also ditch any data service hosted by any company that hires an Australian. The law passed was not restricted to Australian corporations, but Australian citizens regardless of where in the world they reside. Since E3 visas (basically an Australian-only H1b) are so easy to get, that's probably just about any US-based company with more than a few hundred employees.
In practice though I don't think anyone actually cares. I certainly haven't been asked about it by any prospective employers and I work in areas of finance where companies are famously protective of their IP.
In practice though I don't think anyone actually cares. I certainly haven't been asked about it by any prospective employers and I work in areas of finance where companies are famously protective of their IP.