Please let users decide if they want that kind of security. Please make ON/OFF switch for this "authorization" and keep it ON by default.

I have a pocket change wallet and it makes me sick when i'd like to show it to someone and i have to do all the extra work (opening email, clicking on link, etc etc). It's annoying. It's super cool to have that kind of security available... but in some cases, it would be great if we could turn it off for ease of use on multiple computers. Thanks.