Quote:It appears that the fears of privacy and data protection advocates in regards to voice powered devices have come true; at least in a single case where Amazon leaked a customer's voice data to another customer.
What happened? According (PDF) to German computer magazine CT, one of Amazon's German customers requested access to the data the company had stored about him. Amazon sent the customer a zip archive with the data and the customer began to analyze it.

He noticed that the archive included about 1700 WAV files and a PDF document that contained Alexa transcripts. The customer did not own or use Alexa devices and concluded quickly, after playing some audio files, that the recordings were not his.

The customer contacted Amazon about the incident but nothing came out of it; he decided to contact CT and provided CT with a sample of the files. The audio recordings provided a great deal of information about the then-unknown Amazon customer including where and how Alexa was used, information about jobs, people, alarms, likes, home application controls, and transport inquiries.