An estimated 20 million Amazon Echo & Google Home devices are vulnerable to BlueBorne attacks. A series of critical Bluetooth flaws that affect billions of Android, iOS, Windows and Linux devices have now been discovered in millions of AI-based voice-activated personal assistants. Amazon Echo is affected by the following two vulnerabilities:Since different Echo’s variants use different operating systems, other Echo devices are affected by either the vulnerabilities found in Linux or Android. Google and Amazon have both released patches and issued automatic updates for the Amazon Echo and Google Home that fixes the vulnerabilities.
Source: https://thehackernews.com/2017/11/amazon-alexa-hacking-bluetooth.html