Companies building AI-powered tech are using your posts. Here’s how to opt out

Even if you haven’t knowingly opted in, companies are still scraping your personal information to train their systemsWelcome to Opt Out, a semi-regular column in which we help you navigate your online privacy and show you how to say no to surveillance. If you’d like to skip to a section about a particular site or social network, click the “Jump to” menu at the top of this article.The competition to make the latest, greatest, most advanced artificial intelligence thing has