Choose when the digital info on your chipped passport and credit/ID cards is 'on' or 'off' by making a pouch or wallet that contains radio wave shielding/attenuating materials. This one is constructed from trash bags and cans of high-octane beverages consumed by real hackers.
Wrapping yourself in aluminum foil isn't enough! The kinds of radio waves used with RFID are tricky and can penetrate all sorts of things---it's a matter of power and antenna size. On a quest for a modern-day magic shielding cloth, I discovered how to make an effective, rigid pouch on the cheap.
Holds passport, 4-8 credit cards & moderate amount of folded paper.
Shields when closed, even when directly on top of readers.
- Cards in can-lined pockets are shielded when pouch is open, also when on reader.
Inexpensive, readily available materials. Time is most expensive item on this project.
Pouch design works with the strap worn on the body or without & carried in another bag.
Shields more than some items currently available for sale.
Wikipedia on: RFID
and radio waves
More technical details on page 21. Non-commercial use only, please. I made a batch for sale, but do not plan to be doing any more production. (There are about 3 left.) My personal motivation for this project was not pouch sales, but was in a sense my way of distributing "free condoms" for your personal info/privacy. Of course, I'm open to other opportunities. Contact me for more info.: saraheartburn (at) gmail (dot) com.
Thanks, have fun, & be safe(r)!