Why would "Live Photo" automatically record anything without my orders?

I have an Apple 4s iPhone. with the last update, it said it fixed a bug that “knew” when I was picking up my phone, and “would not automatically record” during those times.

Does this mean that the phone automatically records stuff without my knowledge or directive? (Yeah, aside from gov’mint snooping- we can’t get away from those creepers).

I have no intention of using this “wonderful” feature. Now that I have this ability on my iPhone, how do I turn it off?