Brave's chief policy officer Johnny Ryan on Wednesday accused Google of violating European privacy laws and its own policies with a "workaround" that allows the tech giant to share identifying information about its users with other companies for advertising purposes.

Ryan offered the research as "evidence" for Ireland's data privacy watchdog, which is currently investigating whether Google is violating European law.

"The evidence we have submitted to the Irish Data Protection Commission proves that Google leaked my protected data to an unknown number of companies," Ryan said in a statement. "One cannot know what these companies then did with it, because Google loses control over my data once it was sent. Its policies are no protection."