A study made by Checkmarx.
Amazon Echo (with its virtual assistant known as Alexa) is the most sold Intelligent Personal Assistant (IPA) ever, with over 31 million devices sold to date. However, with its rise in popularity, one of the main concerns with IPAs is privacy; specifically revolving around the fear of unknowingly being recorded.
The Checkmarx Application Security Research Team challenged this and managed to turn an Amazon Echo into a tapping device. Download the research paper to learn how.