Three of America's largest tax preparation companies have been accused of sharing tens of millions of taxpayers' sensitive financial data with tech giants Google and Meta without their consent. A seven-month congressional probe, led by Massachusetts Senator Elizabeth Warren, alleges H&R Block, TaxAct and TaxSlayer used visitor tracking technology embedded in websites to share the information. In a potential violation of federal law, the investigation found data was in some cases misused by Facebook parent company Meta for targeted advertising. According to the report, alongside sharing data such as addresses and phone numbers, companies also shared details about taxpayers' filing...