You could always run it in a sandboxed browser (e.g. a Firefox profile) and limit the use to just language learning (e.g. reading neutral articles online). The

You could always run it in a sandboxed browser (e.g. a Firefox profile) and limit the use to just language learning (e.g. reading neutral articles online). The data you would leak wouldn't be much different than what you risk any time you browse any website.