An Echo device in the home of a Portland family recorded a conversation, which it then sent to a random person on their contact list, CNBC reported.
A report from Seattle TV network KIRO7 said the family was alerted by a colleague in Seattle who had received the audio file of their conversation.
After confirming the audio file was indeed a recording of their private conversation, the family unplugged all of their Alexa-powered devices, the report said.
In a statement to CNBC, Amazon blamed the incident on Alexa misinterpreting background conversation as a set of commands.
"As unlikely as this string of events is, we are evaluating options to make this case even less likely," the company's statement says.