You are paranoid.Yeah this RFID crap is getting ridiculous. They are actually starting to put them in credit cards for "convenience"...apparently they think its just too hard to swipe cards.
Call me paranoid, but I think wireless in general isn't very secure at all. I still have my home wired 90s style. Not only is it more reliable its more secure.
The Japanese have figured it out. They've been using cellphones for NFC contactless payment for about six years.