Amazon (and Alexa) know a whole lot about you. Here's how download and delete that info.

USA TODAY's Jefferson Graham explains how you can tell Google, Facebook and Amazon to stop following you around the web. It's not just Facebook and Google that have loads of our personal data. The company isn't only the most popular Internet retailer in the country but it also dishes up content (via Amazon Prime Video, Audible and the Kindle library); runs a successful cloud platform for businesses (Amazon Web Services); sells devices like tablets, Kindle e-readers, set-top boxes and streaming sticks; and lets you access a personal assistant via Alexa-powered speakers and screens. It took the Cambridge Analytica scandal – the unauthorized access of Facebook user data from about 50 million accounts -- to shine a bright spotlight on how much personal data we're (over)sharing, and what's being done with it. You may have downloaded your Facebook and Google data.