Siri was first released by Apple on Oct. 4, 2011 for the iPhone 4S using the voice of Susan Bennett.

Where did Siri get her voice from?

Susan Bennett found out she was the voice of Siri in 2011 via an e-mail from a fellow voice actor who was playing around with his iPhone one day and wondered, "Isn't that you?" To Bennett's surprise, it was her.

Is Siri listening to you all the time?

Apple says that Siri is not eavesdropping at all. Instead, the software's ability to respond to a voice command is programmed in. So, it's not really listening at all times. The iPhone can only hold a small amount of audio, and it only records what happens after it is triggered by the “Hey, Siri” command.