在「Police seek Amazon Echo data in murder case (updated)」這邊看到 Amazon Echo 的隱私問題，起因自警方要求要取得 Amazon Echo 的錄音內容。
Amazon Echo 會錄下所有喊出「Alexa」後的句子，並且傳到 cloud 上持續保留：
[,] Echo only captures audio and streams it to the cloud when the device hears the wake word "Alexa." A ring on the top of the device turns blue to give a visual indication that audio is being recorded. Those clips, or "utterances" as the company calls them, are stored in the cloud until a customer deletes them either individually or all at once.