Inside the multi-billion dollar industry that silently tracks and sells your phone's location data

ZDNet Security Update: Danny Palmer talks to Cisco Duo's Jordan Wright about data broking, the practice of collecting and selling personal data that's heavily used in marketing and advertising, and the risks it causes for personal privacy. FOLLOW US  - Subscribe to ZDNet on YouTube: http://bit.ly/2HzQmyf - Watch more ZDNet videos: http://zd.net/2Hzw9Zy - Follow ZDNet on Twitter: https://twitter.com/ZDNet - Follow ZDNet on Facebook: https://www.facebook.com/ZDNet - Follow ZDNet on Instagram: https://www.instagram.com/ZDNet_CBSi - Follow ZDNet on LinkedIn: https://www.linkedin.com/company/zdnet-com/ - Follow ZDNet on Snapchat: https://www.snapchat.com/add/zdnet_cbsi Learn more about your ad choices. Visit megaphone.fm/adchoices