No links allowed to thecellsnoop dot com (that's where it is).
Scroll down to their FAQ at the bottom of the page. According to their Question Six: the spy ware does *NOT* need to be installed on the victims phone, only on the spy's phone.
If it's so....there's a way to detect or block it's action. If it's a modern myth, and I suspect the latter, then let's label it for that.
Urban Legend or new software tricks? Which anybody really know?