Mysterious feature, or was my phone hacked?
So I am freaking out, and I hope you can tell me I accidentally triggered some feature on my phone and that I'm not being messed with by some hacker. Here's my story:
I'll start by saying my phone is a Verizon Galaxy Nexus, and it was updated as much as verizon allowed it to 4.2.2.
Yesterday my wife and I were having a conversation about the definition of the word "listen". Why we were having the conversation really isn't important, but what happened after has me very concerned. The next time my phone chimes to let me know I have an email, a male voice comes immediately after saying the word "listen". The first time I heard it I didn't know where it was coming from, but after the second chime I realized, IT'S COMING FROM MY PHONE!!!!
I couldn't find any sound on my phone that had this voice, and now I wish I had recorded it, but I was so freaked I just reacted. I wrote an email to myself/potential spies reading/listening in to "stop spying on me" then I reset my phone a couple times and the voice was still there with the chime. I reset my phone again and the voice is gone, but I'm too freaked out so I factory reset my phone.
So, do you think there was some hacker listening in on our conversation and thought it would be funny to somehow add that "listen" to my phone's chime, or by saying "listen" repeatedly within earshot of my phone did we somehow trigger some sort of feature on the phone?
I've never heard of this happening and can't find any google searches about it. The only app that was on my phone that seems remotely related to voice activation was google "talk back" which installed itself in an update at some point, but I never turned on. Could it be that?
Anyways, I hope you can shed some light on this because like I said, I'm freaking out.