New Tactics Get Around Big Tech's Ad-Fraud Defenses
WSJ Tech News Briefing - A podcast by The Wall Street Journal

Fraudsters are using readily-available technology to boost site and ad traffic, bolster search results and pad reviews. Reporter Parmy Olson joins to explain how they're getting around big tech's defenses. Kateri Jochum hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices